Magpul Industries MBUS Rear Flip-Up Back Up Sight Gen 2

Price Save Up to 30% from $68.04 to $48.99

The Magpul MBUS Rear Gen 2 Flip-Up Back Up Sight is perfect for use in conjunction red-dot sights and other optics as a 1/3 cowitness of a back up sight in case the batteries or other electronics fail. These AR 15 Iron Sights from Magpul Industries are spring loaded for fast engagement and easily clamp for Mil Spec 1913 Picatinny rail systems. The Magpul MBUS Rear Gen II Flip-Up Back Up Sight features a dual aperture and is easily adjustable for windage. Impact resistant polymer is durable and dependable in most demanding situations. The Magpul MBUS Rear Gen 2 Flip-Up Back Up Gun Sight proves to be an essential part of an operator's weapon system.


RATING
93 /100
  • Design

    Excellent

  • Performance

    Excellent

  • Value for money

    Excellent

  • Feature

    Excellent

Specifications for Magpul Industries MBUS Rear Flip-Up Back Up Sight Gen 2:

Gun Model: AR-15
Fabric/Material: Polymer
Attachment/Mount Type: MIL-STD 1913
Height: 0.51 in
Length: 1.5 - 2.6 in
Weight: 1.3 oz
Adjustment Click Value: 0.5 MOA

Features of Magpul Industries MBUS Rear Flip-Up Back Up Sight Gen 2:

  • Injection molded
  • Impact resistant
  • Spring loaded
  • Windage adjustment
  • Dual aperture
  • Injection molded polymer

1-Magpul Industries MBUS Rear Flip-Up Back Up Sight Gen 2
2-Magpul Industries MBUS Rear Flip-Up Back Up Sight Gen 2
3-Magpul Industries MBUS Rear Flip-Up Back Up Sight Gen 2
4-Magpul Industries MBUS Rear Flip-Up Back Up Sight Gen 2
5-Magpul Industries MBUS Rear Flip-Up Back Up Sight Gen 2
6-Magpul Industries MBUS Rear Flip-Up Back Up Sight Gen 2
7-Magpul Industries MBUS Rear Flip-Up Back Up Sight Gen 2
8-Magpul Industries MBUS Rear Flip-Up Back Up Sight Gen 2
9-Magpul Industries MBUS Rear Flip-Up Back Up Sight Gen 2
10-Magpul Industries MBUS Rear Flip-Up Back Up Sight Gen 2
11-Magpul Industries MBUS Rear Flip-Up Back Up Sight Gen 2
12-Magpul Industries MBUS Rear Flip-Up Back Up Sight Gen 2
13-Magpul Industries MBUS Rear Flip-Up Back Up Sight Gen 2

  • PROS
  • Easy to work with
  • light weight
  • locks tight and holds position
  • reasonable pricing
  • Light weight, low cost, easy to install.
  • solid construction
  • Solid sight picture
  • allows for Red Dot if desired
  • Lightweight and durable
  • Flip up/fold down
  • proper hight
  • Easy to use. Attach to muzzle and go!
  • Looks great on your weapon
  • Well worth the money
  • quality product
  • Easy to install. Looks good
  • easy to adjust
  • low price for the high quality
  • Durable, well made
  • Low cost
  • Work great
  • GREAT PRICE
  • great quality
  • Excellent value
  • Sturdy, nice looking
  • Tight fit
  • easy windage and elevation adjustment
  • Great Buy
  • Good design
  • Easy to use and operate
  • Amazing quality
  • You get what you pay for
  • Sits snug on my rail
  • Sits flush to rail when not in use
  • Many color options
  • Easy install, fold down and out of the way.
  • Moderate price
  • Some nice features
  • Solid design
  • price construction quality
  • ease of use and installation
  • absolute co-witness with .83" riser
  • Easy to install
  • Looks cool
  • Ambidextrous controls
  • Co-Witness w/ Optics
  • Reasonably priced
  • easy to use and set up
  • easy to use and sight in
  • simple to install
  • Spring loaded
  • Easy installation, great price, function well!
  • Solid well built
  • easy to install
  • HIGHLY FUNCTIONAL
  • Quality Magpul product
  • quality product for a fair pric
  • Ease of mounting
  • ease of use and install
  • Easy Mount
  • Durability, quality, clarity
  • Eace of use
  • Fit well
  • fit perfectly
  • Work easy
  • Love the clean look
  • Light, sturdy, effective
  • Quick, and easy installation
  • Cost-Effective Solution
  • reputable manufacturer
  • Work as advertised
  • Excellent product
  • Easy to mount
  • Well constructed
  • well made
  • ease of mounting and adjustng
  • Goes on easy, stays
  • Easy mounting, quick to deploy,
  • good quality
  • Price, performance and warranty
  • Functions exactly as described
  • compact when folded down
  • quick diployment
  • CONS
  • Peep hole is a tad small, larger hole is better for CQB
  • Nothing I can think of
  • not upgradable
  • Not metal
  • Wish it was priced lower
  • Can cost a bit
  • Do not lock into place
  • OD green didn't match Micro Roni exactly
  • Fde does not match
  • Requires Lube Prior To Use
  • Locking Nut Easy To Lose
  • Have to watch what from hand guards you get. Megpul moe hardly let's front sight laydown
  • Haven't really experienced any cons yet ...
  • only one eye hole
  • never received my front sight from optics planet (so not Magpuls fault)
  • The small peep for some, easily fixed
  • Adjustment lines should be painted. They are not very visible
#Magpul Industries

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Comments
Toby - Add Reply

No adjustment necessary. Very accurate. Pros: easy to install, very accurate for me.

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Newton - Add Reply

Great sights for the money. Wanted something decent for back up. Fit perfectly on my Bushmaster AR. Would defiantly buy again for future builds. Optic Planet is a great go to and shipping is pretty fast.

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Armando - Add Reply

This item is the rear sight of a second pair of like Magpul front & rear flip up sights, all installed on our AR15s & used as backup sights. Although it's inexpensive & constructed of plastic, it is rugged, compact, light in weight, and made in the U.S.A. Mounting it to the 1913 Picatinny rail is simple and I've found it to stay put; haven't found it to loose due to vibration. Pros: Compact, light weight, secure in either folded or flipped up position Cons: Tabs used to flip up spring-loaded sight are small & a challenge to use if wearing gloves.

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Mac - Add Reply

In perusing the comments the only negatives I can find are to the effect that these are "cheap" (i.e. plastic) and "massive". I had to chuckle. I bought a pair of these (front and rear) to co-witness with the optical sight on my newest AR. They installed easily, zeroed easily, offer a good sight picture through either of two apertures, they're rugged and light. They compare very favorably to some much more expensive units from Troy industries which are on another carbine I own, and cost less than half as much. These are the best buy in the marketplace!

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Damien - Add Reply

The Magpul MBUS rear flip up sight is an excellent addition for an M4 platform. The sight is easy to install and easy to zero with a screw driver, multi-tool or dime. The sight easily folds down so as not to interfere with my optics, however pops right into place with perfect alignment every time and no loss of zero. Excellent product!

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Hoyt - Add Reply

Charlie D. from Texas doesn't know how to review a product. You don't give an item two stars because it wasn't what you wanted. Get on the internet and research your products before you purchase people! That being said.. this is a great BUS for the money. I own several and can put 3" groups at 300 meters in the prone supported position with this sight. That's fairly decent for a BUS. All in all this sight is not "bulky" like Charlie D. stated. It's barely bigger than the width of your rail and when collapsed, as it should be because it's a BUS, it's not really noticeable. It's light weight as well. Easy installation and looks great. Especially if you're running all Magpul furniture. I have complete Magpul ODG furniture on my M4 build with some FDE accessories and looks great. If you want to spend (waste) your money on the expensive BUIS then go ahead, but this BUS does the exact same thing as those.

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Alvah - Add Reply

This is a very solid build. Everything about it is tight including putting it on the rail but that is fine. I Co witnessed it with my new Aimpoint Pro. It is very nice. I have several Magpul products on my AR and they all are high quality and serve the purpose perfectly as designed.

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Andre - Add Reply

Ordered this BUS and the mate for the front for my S&W ar10 M&P. Great sites, spot on at 25 yards and at 100 yards. The ambidextrous feature is nice. Nice firm flip up and spring has nice tension to it. Sits on rail nice, feels sturdy, no play, windage adjustment stays where you set it. Will serve nicely as primary sights will I save up for a nice scope :) Highly recommended!

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Giuseppe - Add Reply

This is my 3rd set of the Magpul Gen 2 sights and recommend these for any AR-15 / 10 platform around. Quick to zero in and remains true. You can't go wrong! Mine have been through rough weather and always snap up when needed. There are similar sights on the market but don't be fooled. These are the best.

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Nathanial - Add Reply

I love the MBUS sights. I have them on three of my AR15's now. They are tough, durable, relatively inexpensive and do what they are suppose to do. Just today, I went to the range to sight in an AR with both Magpul front and rear MBUS sights. Took me all of 10 shots to get these sighted in and I was shooting around 1 moa at 50 yards. Not bad for flip up back up sights. I highly recommend these and use them on all my builds.

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Oral - Add Reply

MBUS back up / iron sights work as advertised. I always check out the back-up sights to ensure they will be there when needed. Again, the color match up was on the money. Light weight insurance for a Primary sight system failure. I recommend this sight to all builders. I also recommend practice sessions with back up sights just in case. RH

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Green - Add Reply

Very well built, good finish, easy operation, and accurate adjustments. Would definitely recommend to anyone needing a primary or backup sight system. I look forward to many years of use and abuse. It was my first magpul purchase and definitely will not be my last.

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Maxine - Add Reply

Any magpul products are awesome! Have both front and rear MBUS sights mounted on my Springfield Saint AR pistol. Very low profile, light weight and easy to adjust. Highly recommend. Fast flip up for back-up to co witness with your sight of choice.

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Demarco - Add Reply

Some People will say this product is inferior because it is not metal but if you have another reliable primary optic then you would almost never use this back up sight anyway and I would much rather have this back up sight than no sight. Also I feel that there are enough polymer products out there that have shown that polymer is a durable material. These are my personal opinions Pros: Inexpensive but not cheap

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Hayley - Add Reply

These sights are easy to install and easy to zero. They flip up quickly when I need them. I currently have and EO Tech on my Rock River LAR. These sights were recommended to supplement my EO Tech and I am not disappointed. The quality is very good despite being made of plastic. They are light weight which is good for me because I am a smaller person.

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Santino - Add Reply

This is my 2nd one, they work very well. It is easy to flip up, down, install, use. Its polymer? I think but it feels like it will last longer than me. Its a little pricey but the quality is there.

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Josh - Add Reply

I was nervous ordering a "plastic" rear sight for an AR, but decided to go ahead knowing Magpul's reputation and I am glad I did. The sight picture is excellent and was able to zero it in quickly, you will not be disappointed if you purchase this sight. Thank you Optics Planet for the great service.

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Melvina - Add Reply

I have used this in the past. I am very happy with it's performance. easy to adjust for sighting in, easy to install on my rail. The sight is ambidextrous so can be accessed from either side of the weapon. I would recommend this for anyone needing a backup sight to the optics they have installed on their weapon.

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Green - Add Reply

I purchased this sight to save weight on a recent AR build. It works very well and appears to be tough and durable. Accurate with A2 front sight post. No adjustments were needed. This will actually be my primary sight as opposed to merely a back-up. Going old school! I would buy again!

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Clyde - Add Reply

Great product. I own several of these sights. They are lightweight and durable, very low profile, and they look nice. They are easily adjustable as well. Don’t mount these directly on the gas block, it’s not recommended for extreme heat. You can’t go wrong with Magpul. Highly recommended.

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Kim - Add Reply

In the past I have been reluctant to purchase these because they were not metal. I was pleasantly surprised to find they are very sturdy, wiggle free and easily deployed. I would not hesitate to buy them again.

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Van - Add Reply

I installed these on my FM-9 PCC for Back up sights in case the red dot happens to vanished while competing. At the range I zero the sights shooting 3 shots. The rear sight was center. The front sight I had to adjust to the right one click. Three more shots and adjusted again to the right but this time I moved 3 clicks. Shot 3 more rounds and bingo; dead center. I shot the 10, 15, 20 and 25 yards to verify the zero. For the red dot I adjusted it to be align with MBUS. Then I flip down the MBUS and once again shot 3 rounds at 10,15 and 20 for verification.

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Allen - Add Reply

This is a great affordable BUS for a tight budget, easy to adjust, install, and use! The Magpul MBUS is very durable and can take a beating, they operate smoothly and are very low profile when not in use. Pros: Affordable, durable, easy to use Cons: None

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Jessie - Add Reply

Easy to install, it looks great and more importantly it works great. It is easy to zero, the close range peep hole is easy to deploy. The Magpul sight flips up with ease and the product is ove excellent quality. I know that I will have this sight for a long time. I have already recommended this sight to my friends.

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Abe - Add Reply

Works just fine and won't burn a hole in your pocket. Sighting it in took next to no time. Installation was a breeze the sight quickly deploys and is easy to put back down. Will not get in the way of an optic at all with a riser, lays fairly flat on the rail.

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Carey - Add Reply

Very good product.Does what I wanted it to do. Have used this on several different units and for friends, with good feedback for a sight of this type. If looking for a sight of this type fairly reasonable priced and fast shipping from optic planet.

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Tatum - Add Reply

Great buy once again from OpticsPlanet authentic magpul sights perfect for my ar 15 easy to sight in very accurate corrections perfect for any application thanks again to OpticsPlanet for the fast shipping

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Fernando - Add Reply

These Magpul MBUS flip-up sights are the industry standard. They are easy to install and adjust. Optics Planet has a great selection of colors and their delivery was quick. I will be returning for all my new sights.

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Giuseppe - Add Reply

These sights can be used as backups or primary without optics if necessary. The rear sight doesn't usually get much abuse. They're not indistructable, but for most uses it outperforms. Pros: compact size, durable, holds zero well

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Cedrick - Add Reply

I bought both a rear and front sight. Magpul quality you can count on. They won't let you down when you need them. Beware of EBAY fakes, buy from a reputable dealer like Optics Planet! Optics Planet has fast shipping too, big plus.

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Gerardo - Add Reply

Got this for my 16" AR build, locks on solid and the reticles are just like the ones I had in the army. Had my doubts about the polymer sights, but really I can't tell a huge difference between these and the Troy metal ones. Definitely recommend.

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Donnie - Add Reply

Excellent product for the price. It does what it is supposed to. Takes a lot of abuse compared to other aluminum ones that costs 4x more. Get this then you can afford better glass since this is only for back up. Had to wait to get it in stock but will worth it because Optics Planet had the best price out there.

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Joaquin - Add Reply

Needed iron sights for my first AR build, and decided to buy solely on the price and brand and I have to say I was very impressed in how easy they zeroed in and how on target they are. For the price and for what I needed they are perfect. For 3 gun or other type of competitive shooting, I would advise something in steel, hope it helps!

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Jeff - Add Reply

This magpul rear sight isn't the first I've bought and likely won't be the last. I like them because they're relatively inexpensive, lay flat and are easy to use. Clearly they aren't as robust as primary iron sights built into the rifle but I haven't broken any yet.

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Cruz - Add Reply

Quality sight. Holds zero on my rifle even after removing and reinstalling. Cowitnesses with aimpoint perfectly and easy target acquisition even through glass. Can't go wrong with magpul and a fair price here

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Timmothy - Add Reply

Easy on and off looks great can't wait try them at range day soon will let you knows how it goes and then lookingbuy another pair soon GOD BLESS Texas through all the tough times with the hurricane amen

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Woodrow - Add Reply

Great flip up sights. Would recommend. Easy install. Packaging simple. Durable feel. Best back up sights on the market. If you're buying rest and front sights, buy together, makes overall purchase a little cheaper.

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Robbie - Add Reply

I have been assembling numerous ar pistols and rifles recently and you just can’t go wrong with magpul. If you need backup sights they’re the best economical choice. I have bought amazon flip up sights and although it is cheaper and Metal it’s just cost comparable to this. Quality, build and fit is just superior to magpul products over anything that’s cheaper.

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Rodrick - Add Reply

Great product. Installs securely and easy to use and manipulate. They are Very solidly built like all magpul products. I plan on using these for back up sights on Home defense rifle that is also a hunting rifle.

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Frederic - Add Reply

When right on my rifle had them zeroed in 6 shots off a sand bag. What can I say about Magpul Products they just work as their supposed to. You can not get a better site for the money. I put them on all my rifles.

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Orrin - Add Reply

These are very nice for the money and work great. Nice tight fit and solid feel. They open with a very good snap. I bought front and rear; they make a nice sight picture. Co-witness with my Lucid HD7 just fine but I keep them folded down out of the way.

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Ross - Add Reply

This is ab awesome sight. It was easy install it fit perfect and adjusts and specs out to mil spec. The flip down option is ideal for use with my red dot and the peep is always there for flip up for back up. I got quick delivery and easy purchase on optics planet.

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Wilburn - Add Reply

Performs exactly as expected. Although polymer in design, it has a very robust and durable feel to it. Would and have recommended to friends. Typically I am pleased with Magpul designs and products.

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Cyril - Add Reply

Love this sight!!!! Would definitely recommend to others plus you can't beat optics planet prices !!! The sight that came with my other order from a different website broke, this replacement is much better than what I had before.

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Hillard - Add Reply

Best flip up buis for the money. Light, strong, easy to use. Im not planning on using this sight a lot but if my primary optic fails I like knowing it is there. Pros: price, room for optic Cons: none

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Dock - Add Reply

Great sight, especially for the money. Tight fit on picatinny rail, sight in was a breeze, love the push-button flip up activation. I used these sights for transition sights on a 45 degree angle mount, I can be looking down the sight of my red dot and flip these sights up without moving my head or changing how I'm holding my AR just by pushing the button. Will buy again for another AR build.

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Carlos - Add Reply

I have three of these Magpul popup rear sights and they all function very well. I use them as back up sights to a red dot sighting sytem. Beware that some sellers (not Opticsplanet.com) are selling counterfeit Magpul products.

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Terrance - Add Reply

Sights installed easily and fit tightly on the rails on my 20" M-4 platform. Installed front and rear as a set. Flip ups are well constructed, quite rigid, and leave plenty of room for day or night optics. Although they are composite, I think they are quite strong. Would recommend.

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Emerald - Add Reply

Magpul MBUS back up sights are affordable and very sturdy. The sights sit low on your rails, and you can easily co-witness your sight while looking through your reflex optics. I am glad I bought the product. I would give the Magpul MBUS sights a 4 out of 5.

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Darwin - Add Reply

This product came very quickly. It quickly and easily attached to my Palmetto State Armory upper. I took it to the range and the adjustments are very intuitive. I will buy this product again for my next build.

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Justice - Add Reply

I have had one of these before and it's a great sight. This one came missing the nut and bolt that hold it on the rail. No worries, it happens but OpticsPlanet was little help. Contacted them and was told they would send one out. Nothing! Contacted Magpul and they took care of it. Thanks Magpul.

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Cristobal - Add Reply

After receiving these sights it took less than 2 minutes to install. The sights are a tight fit on the rail so no shifting, and the folding feature makes using a red dot or irons easy. I purchased 2 pairs, o e for my use an d one for my wife. She is a noob to shooting and has an easy time acquiring the target. I like the radiused corners as they dont catch on carry bags or brush. Nice design and easy to set windage and elevation.

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Ryley - Add Reply

CLEAN AND DURABLE. WONT RUST. EASY TO INSTALL. EASY TO MOVE UP AND DOWN Pros: PLASTIC Cons: NONE

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Arne - Add Reply

I intend to use this sight to back-up a EoTech on a tactical shotgun. It installs easily and is well made. Pros: Less expensiver from OpticsPlanet than other places

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Bennett - Add Reply

Excellent product, holds zero. Easily deployed. Sturdy design, several color configurations. Reasonable price and fast delivery from optics planet. Sight is quickly adjusted to zero from 25 to 300 meters for accurate rifle or shotgun

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Arnold - Add Reply

Sight works great as a back up or primary one. Installed it on my AR-10 and worked perfectly after it's first day at the range. Love the way it flips up for fast use when needed but lays flat against the rail for mobility when using my scope. Multiple apertures allow for distance as well as close range shooting. Always excellent service from Opticsplanet.

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Isaiah - Add Reply

I added this to a flat top Ar-15 carbine with a Red dot scope on it for re-liable back up. It is fast to use and has a large and small peep sight on it. I am very pleased with it an have a lot of confidence with this set up. I can use it with the Red-dot inplace. Great product and reasonably priced. Optic Planet was great to do business with.

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Lee - Add Reply

Works just as expected. Got worried because it wouldn't slide on at first so after some research and a few light taps with my nylon hammer the sight fit great. Apparently it's normal to need to tap on the sight with a hammer from the forums I read. 100% will buy again when I build my next rifle. Also shipping was fast and it arrived sooner than expected.

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Kamryn - Add Reply

Magpul mbus sights are a great back up or full time sight. I'm very satisfied with my purchase. I installed them on my MK47 which didn't come with any opics and they function perfectly. I would recommend this product to everyone and anyone who would ever need back up sights or full time iron sights that can be folded down for storage.

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Griffin - Add Reply

Solid and sturdy adjustable rear flip up sight on my AR 15, was a good buy for the price. .

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Ellis - Add Reply

Great buy for the money. This is not a knock off sight like some other web sites are selling. Ease of use. Sight adjustment made easy. Mounting to rails takes about 2 minutes. Made a minor adjustment at the range to zero in at 50 yards.

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Laverne - Add Reply

Great buy for the money. This is not a knock off sight like some other web sites are selling. Ease of use. Sight adjustment made easy. Mounting to rails takes about 2 minutes. Made a minor adjustment at the range to zero in at 50 yards.

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Eloy - Add Reply

Awesome sights! Low profile, sturdy, and look great. I was a little worried at first about not having metal sights but was reassured from several buddies who have the same sights that you can't go wrong with these. I look forward to really testing how durable they really are.

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Sheridan - Add Reply

We run a gun shop and gunsmith shop and use these all the time- great product! Every customer we install the for loves them. Also use them on all of my personal AR's. Highly recommend and LOVE the price at Optics Planet!!

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Florencio - Add Reply

Great flip down gun sight. I purchased these for a S&W 15-22 "superplinker". Nice low profile out of the way of my optic until needed. Perfect for my personal setup for absolute co-witness. Gonna get another set soon for my AR. Get-um. You'll like um.

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Rex - Add Reply

Great sights. Love the flip up control design. Adjustability is easy. Only reason for 4 stars instead of 5 is polymer vs. metal construction. BUT for backup sights the price is right! The metal versions are great too but these work, are durable, corrosion proof, and a great option.

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Willard - Add Reply

In my opinion there is no substitute for non-alloy flip up sights for your AR. These sights are awesome and worth the price! As for back up sights, it doesn't get much better than these Magpul sights. These make a perfect secondary aiming system on my AR.

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Manley - Add Reply

Awesome sight. Color matches other sight perfectly. Easy to install and holds zero perfect. Optics planet is my go to for all of my needs. The only issue is shipping speed. But other than that a great resource for all the shooters out there.

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Jalon - Add Reply

Just like I said for the front sight, this Magpul MBUS Flip-up rear sight is great. Fits nice and snug on the upper rail and is very durable. I haven't had any issues with it in the year of abuse I've put it through. I am very happy with it and am going to buy another one for my current AR build I'm working on. I definitely would recommend this product to anyone looking for flip-up back up sights.

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Dayton - Add Reply

Now these Magpul sight set are perfect for you ar or rifles that don’t stock sights . They are easy to install simple to bore sight and set to perfection, never the less are durable also blend on the fire arm.

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Damion - Add Reply

Easy to install and adjust. Brand name quality at a fair price. Easy to fold down and even easier to deploy. Would have liked better visability(fiber optic, day glow) for quicker acquisition. In stock and quick shipping.

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Keegan - Add Reply

The MagPul MBUS sights offer a good combination of usable features at a moderate price. They fold relatively flat, allowing the use of a variety of optical sights and magnifiers, and they deploy quickly with the push of a spring-loaded tab. They do not lock into place like some much more-expensive sights. Instead, they are held in place by spring tension. This has worked fine for me, and it makes them handier to fold down when necessary. One nice feature is the fact that the rear sight has two apertures: the standard rear aperture folds down, leaving a larger ghost ring type aperture which is pretty handy at close to mid-range. I have used these sights for several years on a number of different rifles, and while I don't do torture tests, the MBUS have held up very well under normal usage, including getting whacked occasionally on branches walking through the brush, etc. And they're affordable for a guy on a budget, too.

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Randy - Add Reply

Very good sights. I just finished my first build and decided i wanted to begin shooting with iron sights before moving onto a riflescope. Comes with adjustment tool so you can zero your rifle perfectly. Fits snugly on standard picatinny rails. Spring and loch mechanism is a nice bonus, so you dont need to leave them up when not in use. Lastly, i believe they are 45° offset compatible, which will be nice when i decide to upgrade to a big boy sight.

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Quinton - Add Reply

I'm a big fan of the MBUS system. Have them on all my rifles. They are very intuitive to zero and give me a peace of mind since batteries fail. Plus They just add a nice solid look to all of my builds. They are a bit expensive but you get what you pay for.

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Rickie - Add Reply

I purchased these rear sights to compliment the Micro Roni Gen 3 Stabilizer version I purchased on Optics Planet. They were of equal or better quality of the sights offered by CAA, and the set price for front and rear sights through Optics Planet was cheaper as well. They are back ups to a Bushnell TRS-25 RDS, mounted to a UTG .83" medium riser. The co-witness is great, and the function of the flip up sight is secure. Best part of MAGPUL BUIS is that they are durable enough for the Micro Roni, and they were easy to adjust for windage.

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Mackenzie - Add Reply

This is the second set of Magpul MBUS Sights Gen 2 that I have purchased year. I bought the first set in flat dark earth (FDE) for a desert rifle build. Now I'm doing a all black build. These are my go sights because of their reliability and the reasonable pricing.

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Ayden - Add Reply

I purchased these sights to put on my son's new DPMS Oracle. I also purchased the Yankee Hill gas block riser to raise the height of the sight on the gas block. Both the riser and sights worked perfectly. I was a little concerned about the heat from the gas block melting the plastic on the front sight but I think the riser acts as a little heat sink and keeps the sight from getting as hot. Now I just have to keep my kid from burning through a full magazine too fast.

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Loy - Add Reply

sights work great and look awsesome on my set up. They easily went on and feel solid and secure. once i am able to find time to get out to the range i will update the review with the actual results found.

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Jordy - Add Reply

TL;DR: Grab 'em on sale, but never pay the outrageous full price. They're cool, they function as you'd expect, but sometimes you need to fix things yourself and Magpul still charges way too much. OpticsPlanet was - surprisingly - able to ship these out to me in nearly record time (thank you). I got these on sale for ~$63 or so. I refuse to pay more than that for polymer BUIS, especially considering that Magpul Quality Control leaves injection molding tags on the final product (requires sanding) and neglects to lube or properly sand down / fit the locking hinge to function 100% out of the box. To explain: the MBUS sights can be deployed using either a centralized button which you depress on top, or via a hanging ledge on either side. When attempting to deploy via the ledge (to avoid pinching your finger), the sights would not deploy for me. It was obvious that there was too much tension and friction at the locking joint. Once I applied some gun lube, the sights ran reliably and I haven't had problems since. My guess is their molds at the factory have probably worn out and I received a questionable batch with a micron of extra polymer expanding at the joint -- nothing some sanding and lube can't fix; but when you charge a premium (~$90+ per set) for a piece of plastic, it should function without any user service, in my opinion. Furthermore, if you're trying to color-coordinate your rifle: please note that Magpul can't even seem to match their own FDE profiles (the curse of ... Read More...

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Omer - Add Reply

Comes with a large and small aperture, deploys with a press of the thumb and has a low sheen to it making it easier to pick up both the front sight and target on a bright day. Mounting was a little tight, but I managed.

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Brown - Add Reply

Received yesterday and installed on my AR-15 rifle. Easy to slide and mount, works as advertised. Happy with Magpul product build and quality. Bought both rear and front sights. Flip up sights are a welcome addition.

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Hollis - Add Reply

Was able to get both sights for what they usually charge for the rear sight. Great price and product. Just have to watch front hand guard to make sure sight will laydown. Company is very responsive to my emails with delays because of covid 19.

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Gilberto - Add Reply

Solid part. Works great. Well built. Happy customer. Clean. Love the color contrast with black and fde This is my 1st Magpul sight and I love how sturdy the spring action is. Built like a tank. Buying another set

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Kenton - Add Reply

Great back up iron sights!! Very easy to install and they are not expensive compared to other BUIS. Pros: Flip up, easy to install

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Tod - Add Reply

Magpul MBUS Rear Sights are high quality for a reasonable price. If you use these as backup sights, why spend more? I've used these for years and have never had a complaint. The size is small enough not to take up too much rail space, and it sits low enough to stay out of the way when using an optic.

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Barton - Add Reply

Works great just as every magpul items do.i wouldn't buy anything else besides magpul. Good strong long lasting product. I would not use any other products out there. Also have a magpul k2 grip it is a great grip fits hand perfect.

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Torrey - Add Reply

Great value and it does the job just fine. Some gripe it's not steel but it's just a back up and will work as intended if needed. Easy to mount and easy to deploy. Solid construction. Usual Magpul quality and reliability a nice finish to my all Magpul build.

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Sammie - Add Reply

For the money it's easy to install and sight in. I installed this sight in 2 minutes on my core15 scout and had it sighted in with 10 rounds. Having three options to flip it up is great to have and easy to tu reach with your thumbs. With this being my first ar platform I found with firing 10 rounds to get it sighted in,that wasn't to bad for a first timer. One thing about Magpul products is that quality is excellent and prices are good.

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Khalid - Add Reply

Great buy for the money. This is not a knock off sight like some other web sites are selling. Ease of use. Sight adjustment made easy. Mounting to rails takes about 2 minutes. Made a minor adjustment at the range to zero in at 50 yards.

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Foster - Add Reply

Magpul MBUS Rear Flip-Up Back Up Sight Gen 2. Perfect for my Winham Weapons Carbon Fiber Flat Top. Paired with the Magpul Front Sight, Magpul quality, easy install. Optics Planet easy purchase, fast shipping, great prices. Optics Planet is one of my favorite suppliers.

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Salvatore - Add Reply

Perfect for low budget back up sights. If you're looking for more reliable sights, I'd suggest fixed, metal sights. Otherwise, this rear sight pairs well with a fixed front A2 sight. The adjustment clicks are audible and tight while the flip-up operation is durable.

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Joaquin - Add Reply

Right out of the package, on to my AR. The first time I have fired the AR and it was 3-6" off target. Having only fired 20-30 rounds, I'm quite impressed. Simple and efficient! I would recommend these sights to anyone.

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Jerod - Add Reply

These sights were easy to install with just a flat blade screw driver. Adjustment is made for windage with a dial on the side of the sight. These were installed on a AR-10 as a back-up sight. I would recommend these to anyone.

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Salvatore - Add Reply

These sights flip up quickly and go back down easily. Simple to zero with the included front sight wrench and very easy to install. My only complaint was that the gray color I ordered was darker than my BCM stock but no big deal.

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Jayde - Add Reply

These are great sights! This is the third rifle I have put them on and I love them. They stay put until they are needed and they pop up on command. The polymer construction is quality and I have never had an issue with breakage nor do I anticipate it.

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Mohamed - Add Reply

These sights are the best for the price and the material they are made from. Solid, with a tight fit. I went with FDE, results are that it matches the rest of my cerakote very satisfied. Will recommend to anyone on a budget.

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Lew - Add Reply

Great backup sights. They fit snugly under my Sig Romeo and Juliet optics, and are more solid than I expected for composite sights. I would highly recommend these to anyone looking for a great backup sight.

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Rylan - Add Reply

Very well constructed, durable with spring loaded flip up action with the press of a button, compared to other models that require manual flip. Easily lock back into place with a light press forward. Easy to install. Easy to sight in. Highly recommended.

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Trystan - Add Reply

Good, solid BUS. Minimal frame/footprint a big plus. Easy to mount. Windage knob turn firm but easy to adjust. A little uncertain about the durability of the plastic frame, but it seems sturdy enough.

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Rolando - Add Reply

I love these Magpul MBUS Front and Rear flip-up sights! I bought mine in OD Green to match other accessories I've put on my AR. They look great and function perfectly! I love the flip-up feature as I like them out of the way during storage! The sights are very reasonably priced and of course dealing with Optics Planet is top rate! I would definitely recommend these sights!

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Royce - Add Reply

Bought these from reviewsfrom here and not Amazon because Amazon is known to sell fake Magpul sights. Never disappointed with Optics Planet.Mounted easily and seem to be a snug fit. Will have to give them a try.

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Logan - Add Reply

Excellent sights for this price range! I purchased these after unfortunately buying counterfeit MBUS sights of ebay...BEWARE of counterfeits! These original sights are night and day different from the fake ones I had. Definitely built to last. Only purchase from a reputable dealer!

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Laron - Add Reply

This sight is great. Durable and affordable. Being used as a backup sight for my MRO Patrol. It holds zero and is easy to sight in. This is a must for anybody looking for a solidly built backup or everyday sight.

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Art - Add Reply

This is a great BUS. Like all Magpul products, it is made of high quality polymer so it is very light and functional. I really like how easy it is to activate the sight and how easy it was to install. Highly recommended!

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Khalil - Add Reply

Great product. Great value. Works well. Takes reasonable abuse. I would like the front sight to use a standard A2 or A3 style elevation tool, as Magpul uses an enlarged one. So, if you bring that tool, it will not work on an older front sight. I also like the Magpul Pro Sights a bit better, due to no tools needed, and the rear sight stays out of the way of the AR charging handle's way better, as it is thinner and smaller overall. The price has went down on these. I only order from OpticsPlanet or other reputable gun shops, as fake products are abundant on other retailers. These sights work great with a small red dots and 3x magnifiers, as they stay clear when folded down. They may not allow all 3x magnifiers to clear for the rear sight to flip up, as their dimensions may be too wide for some magnifiers. So, have good clearance or a quick release handle on your magnifier. I also like the new color options available. I would recommend to a friend. These sights are lightweight and basically the standard for this type of sight on the market.

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Waylon - Add Reply

I wanted a good lightweight set of flip up sights for my new build and I definitely found a winner here folks. There are a lot of haters out there because they are polymer but I like that because if they were metal and say you dropped your rifle on the sights it could bend them and they’d be useless to you polymer might break an edge off or crack but they would still function until you could replace them. They are lightweight easy to install and use and everything you could ask for on a set of flip up sights.

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Elian - Add Reply

I purchase the Magpul MBUS as I just completed an AR build in Flat Dark Earth and this and the Front Flip-Up Back Up sight. The install was easy as well as to "zero" them in. I have a number of Magpul items and these sights are reasonably priced. I recommend Magpul products to keep your carry rifle on the lighter side.

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Porter - Add Reply

We bought these to be used in conjunction with the red dot scopes that we recently purchased for our AR-15 patrol rifles. They function as advertised. There really isn't much to say about them other than that..and that is important. The price was in line with what we wanted to spend. In times of diminishing budgets...it is nice to find affordable, practical gear.

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Keyshawn - Add Reply

Great buy for the money. This is not a knock off sight like some other web sites are selling. Ease of use. Sight adjustment made easy. Mounting to rails takes about 2 minutes. Made a minor adjustment at the range to zero in at 50 yards.

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Woodrow - Add Reply

Great buy for the money. This is not a knock off sight like some other web sites are selling. Ease of use. Sight adjustment made easy. Mounting to rails takes about 2 minutes. Made a minor adjustment at the range to zero in at 50 yards.

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Gussie - Add Reply

Basic rear site for my Colt Expanse M4 which is a stripped down Colt with no rear site. I intend to rely on Red Dot site, but wanted M4 to have manual sites as well. My other M4 has stock Colt rear site which is better. This site gets the job done, but if you've used a high quality site you will notice the difference.

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Barton - Add Reply

Yes this sight is good back up sight if your red dot scope goes down. Great for price. I recommend because it is from magpul. Great quality, it will last forever. It is very easy to install, took me five minutes , with a screwdriver. When this scope goes on sale buy it.

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Wallace - Add Reply

For the money you can't go wrong with this sight. It fits perfect. The spring is responsive and flip up on demand. Over all I am happy with this sight. I plan on using the front and rear on my next build.

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Ayden - Add Reply

This is the second set of of Mgpul MBUS sights I have purchased. Can't go wrong. If your not mounting a set of steel sights, consider these first for a poly flip up. Solid tight mounting, robust build with a positive pop and lock position.

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Dante - Add Reply

I haven't shot my rifle yet, so this may be a bit pre-mature. I'm planning on getting a red-dot type optic, so these will be back up. They look good and fit good snug on the rail. So far they function like they are supposed to - flip up and lock down just fine, strong spring. Rear sight windage adjustment is done by turning a wheel on the side - no tools necessary. Front sight elevation adjustment is identical to any stock AR. The front sight did come with a key-like adjustment tool. To whoever thought of including that piece: Thanks. They are plastic, but that doesn't seem to be a problem. I wish the rear aperture was a little bigger - not doing any precision shooting with this and certainly not with not with "iron sights," especially since my vision has tanked the past few years. Unless they just break, I don't anticipate any issues. Very pleased.

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Shane - Add Reply

The sights are very good still need to take the AR out and shoot it to try the sights. The shipping was fast. Magpull MBUS Gen 2 flip - up are what I was looking for. I built the AR for a 3 gun shoot.

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Maxime - Add Reply

I ordered a set of Magpul MBUS Rear Gen 2 Flip-Up Back Up Sights. The set came promptly. they are exactly what I needed for a recent AR build. They work great and easy to use and sight in. I have a set on two other AR'S I use. I would highly recommend the set to anyone looking for a reasonable set of back up sights.

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Marcelino - Add Reply

I am a new to AR15. I wanted to learn the basics of rifle shooting before buying any optic. My instructor recommend it Magpul sights for my beginning lessons. Since my AR15 came without any sights. I feel that for the price these sights are the best, besisde Magpul has a great reputation. I am happy with them. Oz.

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Jamie - Add Reply

Great set of back up sights. Just buy once, cry once. Don't waste any money on crappy cheap sights trying to mimic these. It's not worth it. You'll have trouble adjusting them or holding a zero. These lock up and down tight and stay put. Quality Magpul.

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Zachary - Add Reply

Recently purchased an AR 15 and required a rear sight. Research indicated Magpul a good choice. I ordered one and upon receipt, I was very pleased with the product. The sight is well made and the cost acceptable.

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Malachi - Add Reply

Love this flip up sight! Looks, feels and works great in the field. Flip up mechanism is also very easy to use with gloves on. The color options are fantastic. Highly recommend them even as back up manual sights to other optics options. My third pair purchase so far!

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Woodrow - Add Reply

I have resisted repeated suggestions that I add a Red Dot to my A/R. But recently, my son convinced me to get a Bushnell TRS-25 like the one he has been using for over four years on his A/R. With this I also upgraded to a new rear sight and went with the Magpul MBUS which completed this conversion. The sight is well made, easy to use, install and co-witnessed with the Red-Dot and my front A-Sight perfectly. My A/R is now 100% Magpul-sight, stock, fore-end, and pistol grip. Optics Planet had the best price on the rear MBUS sight of all that I research. Shipping was fast and affordable. Thanks Optics Planet.

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Luther - Add Reply

I use these as a backup to my red dot and they work well. Light weight and handle the abuse from long training days. Magpul has always done right with customer service and handling any issues that may arise.

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Johnny - Add Reply

Another excellent product from Magpul. Wether you use these for primary or back up these sites will do the job. Quality and price make this a great buy. Optics Planet makes the purchase even better!!!

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Kevin - Add Reply

Just as expected. Had no doubt that these would be as described and they were. Best price I could find at the time as well. Would purchase more in the future if the need arises that I would need more.

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Myron - Add Reply

These are great back up "iron" sights (polymer). Very light weight. The color options you see online are true to what you get in the mail. My one "Con" is that they are kinda wide/bulky. Something to keep in mind if you use or plan on using a offset light mount near the front of your rail.

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Moriah - Add Reply

I believe anyone who has Optics for their Rifles should definitely have these as back up sights. They are extremely durable, & accomplish the same exact task as more expensive back up sights cheaper than the competition. The shipped in a very reasonable amount of time, & have yet to be disappointed in them.

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Jonatan - Add Reply

These back up sites work perfectly, nice look, nice functionality, great price. Magpul has always made a great product, and Opticsplanet always has the best deals. Couldn’t be happier with the product.

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Kiel - Add Reply

The sights were there good but the rear sight didn’t come with the lock down screw. I contacted optic planet they said they would get with me in a few days and it has now been 2weeks still no answer. But other than that the sights seem to be in good working condition.

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Hollis - Add Reply

Great sights, worth buying, used on multiple types of rifles and seem to stand up to the more expensive ones Pros: lightweight, cost not too much, magpul warranty Cons: not metal, not good on MG's and guns that get very hot

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Delaney - Add Reply

Nice sight very nice to fold down out of the way while using red dot or other optics. Not the easiest or in general the most adjustable but it will get the job done if you need iron sights. I now wish I could add the front version as well but that will have to wait for a little gunsmith in.

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Paris - Add Reply

Great price, best I could find online. Shipped and received quickly. Lightweight and installs very easily. The color matches other ODG furniture well, Magpul and other brands. The first range test with matching front sight was zeroed at 50 yards out of the box. NOTE - this was installed on 45 degree angled mounts, so out of the box accuracy was a pleasant surprise. Couldn't have been better overall experience.

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Maximillian - Add Reply

Magpul MBUS gen 2 flip up rear sight. Works great, reasonably priced. This product is perfect for its intended use as a back up for your optics. Easy to install and easy to adjust. Looks great. Cant go wrong with Magpul!

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Cooper - Add Reply

Sights fit tight, no rattle, easy to zero in seem to be tough and durable. They fold up nice and flat. Not sure how they would hold up in a combat situation , but lets face it I am not going to be in a combat situation.

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George - Add Reply

Fast shipping, priced well, seem sturdy, easy to mount following the inclosed instructions, raise and lower easily. Can see the front sight through the Red Dot. Some others were less expensive by $20 for the front and rear sights but had terrible reviews, chose the Magpul based on Magpuls quality.

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Antwan - Add Reply

Puchased this sight for my A2 for primary rear sight duties, and it went on perfectly. Worked perfectly with the A2 front sight as well. No need to put on a metal rear sight, and there are other reviews that a SWAT team is using this same sight with no obvious wear or problems. Well worth the money, I want to see how well it holds up over time, but expect to have no issues.

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Gillian - Add Reply

I ordered both the rear sight and the front sight Magpul flip-ups for my Windham Weaponry Carbon Fiber AR-15 optics ready. So far i have only received the rear sight from optics planet. Its been 3 weeks and I have not received the front sight so frustrated that it is taking so long. As far as the rear sight, fit well and seems to be in good working order (but haven't fired it yet since I don't have the front sight).

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Monserrate - Add Reply

Purchased front and rear Buis, fromt sight arrived promptly, still waiting for rear soght to come back in stock, been a little over a month now and no eta yet. Quality of front sight is great. Hoping the rear sight comes in soon.

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Clark - Add Reply

Great buy for the money. This is not a knock off sight like some other web sites are selling. Ease of use. Sight adjustment made easy. Mounting to rails takes about 2 minutes. Made a minor adjustment at the range to zero in at 50 yards.

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Willard - Add Reply

Needed a rear sight for my sister's home defense AR. I have MBUS sights on my 2 AR's and they've been reliable, easy to acquire and easy to use. More than adequate for home defense purposes and range shooting. My sister likes the simplicity and reliability of the rear sight as well.

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Dameon - Add Reply

Fit and functioned flawlessly. Magpul doesn't make any bad product. A quality purchase from optics planet, will definitely be buying another set for my next AR build. This was my first purchase from optics planet but it won't be the last. Easy checkout and fast shipping!

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Florencio - Add Reply

Magpul always great product and great price. I use and sell Magpul products and very happy with this company.The rear sight is fully adjustable for for right and left plus the sight locks in the up and down position.

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Nash - Add Reply

This product arrived as described. Product seems to be very sturdy and is easily installed to your pica tinny rail. The items come fully packaged and have instructions on use and installation along with all tools needed.

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Aiden - Add Reply

Love this Magpul rear sight. I used other iron sights, but after seeing the difference on the Fab Defense I have on current AR15 I went ahead and ordered a replacement set. I like the cleaner look, easy to flip up as well unlike the Fab Defense brand.

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Alden - Add Reply

Good product, quality product, it was exactly what I was looking for and I would buy again. Fit and finish no modifications at all. The price is fair compared to other websites that sell similar products. You get what you pay for.

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Judson - Add Reply

It's very light and easy to setup with the knob but it's seems too plastic. You can fold it if you decide to use other optics. Cost wide is around $100. I am not sure how much this thing can hold under the heat/sun.

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Giovanni - Add Reply

Very well made and easy to install. Works great on my AR10. They are very accurate and a great addition. Optics planet was great and I would definitely buy from them again. Shipping was good and arrived in good order

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Olen - Add Reply

Great back up sights. Light weight and function well. I have been using these for years on other rifles and haven't had any issues. Thanks......................................................................................................................................................................................................................................................................

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Giovani - Add Reply

Good realibale back up sights when other optics fail. The magpul sights they are a must for every ar application. Thank you optics planet for always having amazing sales. these sights meet my expectations. I would recommend to every. Pros are that it’s light weight easy to install. Cons haven’t heard any. Thank you, e.

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Reece - Add Reply

As with all Magpul products, this is made with exceptional quality and at a great price. Great as back up sights or even primary sights. Sight functions great and looks fantastic on my Ar. As always, Optics Planet has great products and even better prices

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Doris - Add Reply

Sights worked great for me. Positive lock up in both raised and lowered position. I will order again for other rifles.Magpul always seems to work as advertised. You can order with confidence. Shipping was fast, as usual.

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August - Add Reply

Clear sight picture, very easy to install, rugged build quality, easy adjustment, aesthetically pleasing, flipping them up and down is very quick, I would recommend them. Good for replacing stock sights and new bullds.

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Alessandro - Add Reply

Coming in at 2.5 ounces for both front and rear, these will more than likely be my backups on my desert light weight fun gun. The quality is there, and for plastic they feel extremely sturdy. The only thing I am not a fan of is the small vs. large peep sight. When using the more logical larger one, you fold down the smaller one to where it sticks out and up. When the sights are folded, the smaller peep sits "proud" and may interfere with some scope setups for those with enough room to slip it under the rear portion of by the charging handle. This is easily remedied by judicious use of a dremel, so not a big deal IMHO

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Ezequiel - Add Reply

Got these as back up sights and loved them! Definitely worth the money very easy to zero in and are very accurate! Installation is also very easy and it gives my rifle a sleek and low profile look. Will definitely recommend

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Alan - Add Reply

Magpul flip up back up polymer sights are well made, and ideal when you need a lay down until necessary to deploy back up sight. The flip mechanism is robust and convenient to deploy. Front sight comes with its adjustment tool that stires easily in AR pistol grips which have storage compartment.

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Daron - Add Reply

Excellent design for a light weight backup iron sight system. Priced right, and extremely easy to assemble on a 1913 rail system. Simple to adjust windage or elevation, tool provide with the front sight. The flip up spring system is so simple to use for the up position, or down position.

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Lonzo - Add Reply

Spot on for fit and function, Magpul does it again (obviously). A great addition to any rifle, I’m using these as back up sights on my AR. Optics Planet made the buying process seamless and easy, and I received my sights very quickly as well. Would absolutely recommend these sights to anyone in the market for both affordability and reliability.

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Keagan - Add Reply

Sight was easy to install and very user friendly.

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Jerry - Add Reply

I purchased the sights as a back-up to my EoTech optic and found they were easy to install, I did have to use a small hammer and piece of wood to tap the front sight on as it was a very tight fit over the rail on my PWS.

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Willy - Add Reply

Magpul products are always high quality. It worked as advertised. Install was quick and easy. The adjustment for the windage was easy to manipulate. To switch from both apetures is really simple, you just need to flip the smaller apeture down. Shipping was delivered in a timely manner.

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Cordelia - Add Reply

I purchased front and rear sight for my first AR build. Easy to install, easy to adjust. Doesn't add a lot of weight. Was debating between Troy and Magpul, finally went with Magpul. Cheaper and does the same job, plus lighter. Fast shipping!

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Norval - Add Reply

They are great. Easy to see and shoot. Easy to install and operate. They stay completely out of the way of my Aimpoint optics. Definitely recommend to anyone with an AR.I am very happy with my purchase

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Glennie - Add Reply

i think these are great sights for the price... i was looking for sights for my rifle and i saw these and i thought i would give them a chance and they turn out to be a really good deal and great sights

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Don - Add Reply

Yes they're no iron but they are a great value in backup sights. I had been purchasing other higher end metal sights but since they are such high quality, have been improved (Gen 2), and they are truly a secondary sights (optics are primary) why spend the extra money?

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Laron - Add Reply

After handling lesser quality back up sights, I had reservations about purchasing Magpul MBUS. Thinking that these could be more cheapo Chinese craftsmanship. Ive yet to be disappointed with Magpul products. Much more robust than expected. Light weight and easy to install. I'll use the same on my next build.

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Orland - Add Reply

If you're wanting steel sights or low profile sights, then you're wasting your time. There are a lot of knocks on this by reviewers and normally not because of any flaw in the product, but because this isn't what they wanted to begin with. If you want steel sights, pony up the cash and buy steel sights. These work just fine, fit fine, adjust fine, and flip up and close back just fine. They are lightweight and well constructed as are most things Magpul. A little bulky, but if you've seen them in person, you know that going in. They fold down with plenty of clearance under my Leatherwood CMR4 in a PEPR mount (as well as probably any other 30mm tactical type scope). Will co-witness fine through any of the holographic sights. I bought them to replace stock steel sight on my Sig M400 because I liked the little flip up button and the straight fold down as opposed to pushing a button to fold the stock sight back down.

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Kenneth - Add Reply

Great buy for the money. This is not a knock off sight like some other web sites are selling. Ease of use. Sight adjustment made easy. Mounting to rails takes about 2 minutes. Made a minor adjustment at the range to zero in at 50 yards.

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Halle - Add Reply

Magpul does it again with their MBUS rear Gen-2 flip- back up sight. This is just for the rear sight but I purchased the front as well. I installed them on my AR-15 pistol build along with my Vortex SPARC II red dot. They install easily and once secured they are secured solid. Very well design and when in the down position they don't rattle or move, once deployed they stay up without any movement at all. When securing them in the down position they are easily to be secured and locked into place. Adjustment is tight so there is no problem of them coming out of adjustment at all. They look good and I am very pleased with them as my BUS and or with use with my SPARC II.

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Dalton - Add Reply

Magpul MBUS Rear Gen 2 Flip-Up Back Up Sight is one of the best and most trusted flip up sights you can get. Everything you need in a nice modular package. Available in a bunch of colors to match your setup.

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Jarrod - Add Reply

I am a fan of most everything magpul and these affordable flip up sights were no exception. Optics Planet was great. They had most of the products I wanted in stock and delivery was fast. There was one item that was found to be out of stock after my order and they gave me an option to change to an in stock item with a discount. Great customer service. I would recommend them to my friends and will order from them again myself.

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Cade - Add Reply

I originally ordered a different product and was told it was out of stock. The employee I spoke to (female) was soooo helpful! She looked up what they had in stock and found a set of buis for my ar build. She was great and the magpuls are awesome. The front sight comes with the adjustment key

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Doug - Add Reply

Matech was my main back up sight since being in the military. Tried the Magpul back up and seem to be just as good as the metal back up. The flip up action is very snappy. Have yet to zero it. But seems good on parts with all Magpul products.

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Lee - Add Reply

Typical Magpul. Great quality, solid construction,,snug fit on the rail, and flawless dunction. This sight is my backup to a 1x4 power scope on my flattop rceiver. The price was reasonable, too, especialy here at Opticsplanet. This store is quickly becoming my "go to" plac for gun parts.

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Justice - Add Reply

When I received the MBUS Sight I was satisfied with the shape and size. The aperture sights are really effective. It pairs perfectly with the front sight. Over all this sight is a tad bit large when on the rail. Good stuff

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Emmanuel - Add Reply

Great price. Easy to install and zero. Don't forget to get the Front Sights. Best two features I think are the spring-loaded flip up and two aperature sizes. You can't go wrong with Magpul products.

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Johnny - Add Reply

This is a good product from Magpul. The sights were very easy to install and very easy to sight in. This is a great product for the price. I was able to order the front and back sights at a great price. Will definitely look to magpul for other accessories.

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Ayden - Add Reply

I do alot of ordering with optics planet and always fast shipping and great prices. There customer service is great. Any time I had problem with an item they handled it quickly and professionally. I highly recommend optics planet

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Abe - Add Reply

Good back up sight. Light weight, bought it on sale so it was reasonably priced, holds a zero. Mounting was easy, and can be co witnessed easily and flipped down its out of the way of any optics sight picture. Not much more you could want in a back up sight.

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Alf - Add Reply

You can never go wrong buying any products that Magpul sells. They only make top notch products. Do not hesitate buying the rear flip up sight from Magpul. You will not find anything better. Always buy from Optics Planet. They take care of their customers.

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Winston - Add Reply

Ordered this product for my ar 15. I plan on putting an optic on the firearm. From the looks of the size of the sights. Im sure I will be able to leave them on as backup sights. Good product, easy to attach. Clear sight picture and I love the option of the peep and combat sights. They look extremely cool on my ar. Fast shipping and exactly what I ordered.

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Brock - Add Reply

I bout the gen 2 magpul MBUS read sight to go onto my ar15. It is a well constructed sight that is easy to put on. The spring that is on the sight makes it deploys very fast and it’s easy to adjust. It did take alittle bit of force to get mine onto the picatinney rail but when I got it on it was definitely secure.

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Wiley - Add Reply

The sights were good quality. OpticsPlanet had the cheapest price on the internet while guaranteeing that the sight were actual Magpul products. Amazon and other sites have counterfeit sights that look real.

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Jose - Add Reply

These BUIS are great for any build. I paried them with a BCM upper and a Sig Romeo5 RDS. They work great as a 1/3 co-witness and have been put through a few rough training scenarios. Sighting them in was easy and quick as long as you know the distance and adjustments to make. Would definitely buy again but I doubt I will have to.

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Mikel - Add Reply

Easy to mount, easy to adjust. On target in 3 sets. Purchased as a set which saved a little cash. Arrived quickly and once at the range i was sighted in quickly and then wasted a few targets. Id highly recommended these sights

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Emerald - Add Reply

Best rear backup, flip up sight for this price range. Very well made. Could also be used as a primary rear sight. Most negatives I've heard come from people who have accidentally bought the air soft version of this sight.

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Diamond - Add Reply

As advertised. Good fit, nice finish,flip up and down very smoothly. The adj. knob is very small and hard to turn but the clicks are solid feeling and "tactile." I liked the color options. The sight was very snug so you struggle a little during the install. It works well with A2 front sight.

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Kristopher - Add Reply

Works as it should. Front and rear sights both fold up and down with minimal effort on users end. Easy to slide onto the rifle front and rear. Run these sights as backups on all of my ar's. I dont know what else to say other than these are great.

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Cedrick - Add Reply

got them mounted[easy mounting]. started out at 10 yards to get on paper; then to 25yds. adjusted; and on to 50yds.I really like these back-up sights; anyone can mount these and get sighted in no time. Next trip out I will move to 200yds.to verify. Thanks optics planet for great price and speedy delivery.

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Lincoln - Add Reply

Put this on a recent build, took longer to open pkg. than to install. Zero’s easy, holds it. Great back up, to the scope, or red dot sights. Worth the money. Glad I bought these. Will put them on any other builds.

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Dino - Add Reply

Purchased these for my recent AR build. Have used others but these are built stout. Spring releases are strong and long lasting compared to others. Easy to attach to the AR. Used as backups to my Vortex red dot. For the money these are great sights, as well as offered in various colors. They hold zero and have easy adjustments. . Don’t wait. Grab these and forget the rest.

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Edgardo - Add Reply

Bought it for my s&w m&p 15. Love the functionality and ease of use with these sights. Match my FDE additions great. Highly recommend for back up sights. Will fit under scope well depending on your mount height.

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Lamar - Add Reply

Very good iron sights does exactly what I need them to do. They are easy to install and look great on my CMMG mutant. Once I put them on it made it very easy to co witness the rest of my optics. All in all very happy with my purchase

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Reggie - Add Reply

Just like the front sight the rear works great. For being a plastic sight they seem really tough and mount to the pic rail just fine. Definitely a cheaper alternative to the Troy sights and seem to work just fine

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Tre - Add Reply

Sights come brand new in separate bags, sealed from the factory. Finish is nice on the black polymers at least, larger than I expected but I don’t mind that and in fact I prefer it. Got what I paid for and it was delivered quickly and safely. Good buy.

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Jairo - Add Reply

Site functions exactly as described. Sits tight on rail. Displays firm and positive deployment and folding. There is nothin “sloppy” about this product. Uses limited amount of rail space. I much prefer this sight’s apertures over the Ruger model of similar specs.

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Lionel - Add Reply

I'm sure it's a great sight. i ordered front and rear and only received the rear sight, I cant say its the best because I can't use it. Pros: Great Cons: I ordered front and rear, only received the rear sight.

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Clovis - Add Reply

Installed yesterday and went to the range, works very good and well made, easy installation , highly recommend this item. I own several Magpul products and find them all to be excellent products with good warranty and factory support.

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Dangelo - Add Reply

Product was packaged very well and arrived as promised in good condition. Installation was a little slow. Sight was a very tight fit to the rail but did go on after a few minutes of trial and error. The sight preformed and functioned as advertised. Excellent product and would recommend it to anyone needed a well made and operational rear AR sight.

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Sanford - Add Reply

These are an excellent value, as they have solid performance. They are lightweight, fold out of the way, deploy at the touch of a button and retain zero. This is my second set of these, and I am very pleased with the purchase and with the service from OpticsPlanet!

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Fletcher - Add Reply

Just what I needed for my M 4. Works perfect, looks great and accurate. Magpul makes great products and I would purchase other products from Optics Planet in the future. Can anyone say "Nice Pattern"? Keep it tight and practice.

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