Guntec USA has been manufacturing AR-15, AR-308 and AR 9mm accessories since 1989. Our goal is to distribute excellent quality, at an economical value.
Specifications for GUNTEC USA AR .308 Cal Bolt Carrier Group Mil-Spec BCG:
- Made for 7.62X51 / 308 Cal
- 9310 Hardened Steel Bolt,
- Hardened extractor S7 tool steel.
- Nickel Boron Finish
- 17-4 Stainless Steel Firing Pin (Heat treated to H900 Condition)
- The group comes fully assembled with properly torqued and staked gas key
- HPT/MPI Tested and Marked
- 8620 carrier and gas key.