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Click here to order the Rise Armament AR-15 Bolt Carrier Group Nickle Boron 5.56 on our website.
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The RISE Armament AR-15 Bolt Carrier Group in Nickel Boron is built for reliability and smoother function. Each BCG is precision-manufactured and individually inspected for high performance. The nickel boron coating reduces friction and adds wear and corrosion resistance compared with standard chrome.
This 11.6 oz BCG uses a full-auto profile for compatibility with forced-reset selectors and forced-reset triggers. The bolt is 9310 and MPI-tested. The carrier is 8620 tool steel, heat-treated and case-hardened. The gas key is tool steel with grade 8 hardened fasteners, staked properly. The cam pin is 4140 steel, and the extractor is tool steel and shot-peened.
Features
- AR-15 bolt carrier group with nickel boron finish
- Nickel boron coating to reduce friction and improve wear and corrosion resistance
- Full-auto profile for compatibility with forced reset selectors and forced reset triggers
- Individually MPI tested
- Bolt: 9310, MPI tested
- Carrier: 8620 tool steel, heat treated and case hardened
- Gas key: tool steel with grade 8 hardened fasteners, staked properly
- Cam pin: 4140 steel
- Extractor: tool steel, shot peened
- Unit weight: 11.6 oz
- Finish: Nickel Boron
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