5.56 Bolt Carrier Group
–Black phosphate finish
–Mil-spec
–Shot peened & MP tested bolt
–Full auto carrier w/staked carrier key
— Chrome lined gas key and chrome lined carrier bolt bore
5.56 Bolt Carrier Group
–Black phosphate finish
–Mil-spec
–Shot peened & MP tested bolt
–Full auto carrier w/staked carrier key
— Chrome lined gas key and chrome lined carrier bolt bore