Walker Defense Research Research Steel Bolt Carrier Group BCG 5.56mm / .300 BLK DLC Flat Dark Earth

Walker Defense Research Research Steel Bolt Carrier Group BCG 5.56mm / .300 BLK DLC Flat Dark Earth. FDE DLC offers lower friction easier cleaning and better lubricity including a lower overall need for lubrication compared to a standard mil-spec manganese phosphate bolt carrier group. The bolt itself features black DLC and is MPI (Magnetic Particle Inspected). Walker Defense Research employs small-batch quality control to maintain high standards. BCG components are hand-matched to prevent toler