Nitrided M-16 Bolt Carrier Group

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Complete M-16 Bolt Carrier Group with Nitride Coating

Complete bolt carrier assembly with bolt, bolt carrier, and firing pin ready to drop into the rifle or carbine upper of your choice. Each bolt is batch high pressure tested and magnetic particle inspection tested to ensure it's free from imperfections that can lead to premature failures. Properly staked gas key prevents gas leakage that can lead to short stroking. M16-style carrier with the black Nitrided finish has full-length shroud for tripping auto sear. Carrier and gas key are coated for smooth cycling and resistance to wear from hot combustion gases for years of dependable service.