Rise Bolt Carrier Group AR15 Nickel Boron Silver

Rise Bolt Carrier Group AR15 Nickel Boron Silver

RISE Armament advanced bolt-carrier group (BCG) manufactured with precision and individually inspected to ensure high-level performance. Coated with nickel boron to reduce friction and improve overall performance. - Key Features - Coated with nickel boron to reduce friction and improve the rifle's overall performance - Unit weight: 11.6 oz. - 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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