AR-10 Bolt-Carrier Group Black Nitride FinishRISE Armament manufactures its advanced AR-10 bolt carrier group (AR10 BCG) with precision. The .30 caliber BCG is compatible with calibers such as .308 and 6.5 Creedmoor.
RISE Armament individually inspects each to ensure high-level performance.
- 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