M16 5.56mm Bolt Carrier Group Chrome

Complete, mil-spec assembly with bolt, bolt carrier, and firing pin ready to drop into the rifle or carbine upper of your choice. Features a shot-peened bolt for increased surface strength and durability. Each assembly is 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. Chrome Bolt Carrier Group features a Full-Auto Bolt Carrier. Carrier is chrome lined for smooth cycling and resistance to wear from hot combustion gases for years of dependable service. Available in .223/5.56mm.