M16 5.56 Bolt Carrier Group Nickel Boron Mp Brownells
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M16 5.56 Bolt Carrier Group Nickel Boron Mp Brownells.
The Brownells M16 5.56 Complete Bolt Carrier Group is an affordable option that is built and tested to provide flawless operation in ...
Product Description
Flawless Operation at an Affordable Price
The Brownells M16 5.56 Complete Bolt Carrier Group is an affordable option that is built and tested to provide flawless operation in any AR-15 or M16.
The Brownells M16 5.56 Complete Bolt Carrier Group features a bolt fabricated from 9310 steel that includes a heat-treated and shot-peened finish. The bolt carrier itself is built using 8620 steel, which features a hardened finish. The whole BCG is completed with a nickel-boron coating.
Steel quality assured with magnetic particle inspection
Features extractor with rubber insert and spring
Gas-key screws are torqued and staked
Designed for use with all 5.56-NATO-based cartridge cases.
The Brownells M16 5.56 Complete Bolt Carrier Group features a full assembly that includes the bolt, bolt carrier, gas key, firing pin, cam pin and a firing pin retaining pin.