5.56mm/300BLK 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
--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