The RISE Armament AR-15 Bolt Carrier Group (BCG) manufactured with precision and individually inspected to ensure high-level performance. The easy-to-clean black nitride finish offers unmatched strength with each pull of the trigger. A nickel boron bolt carrier group is also available.
- High-strength and easy-to-clean black nitride finish
- Individually MPI tested
- Bolt: 9310 MPI tested
- Carrier: 8620 tool steel heat treated and case hardened
- Gas key: tool steel - grade 8 hardened fasteners and staked properly
- Cam pin: 4140 steel
- Extractor: tool steel – shot peened