Rise Armament AR 15/M 16 Black Nitride Bolt Carrier Group
RISE Armament’s advanced bolt-carrier group (BCG) is manufactured with precision and individually inspected to ensure high-level performance. The easy-to-clean black nitride finish delivers unmatched strength with each trigger pull.
Features
- 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






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