Battle Arms Development AR15/M16 Full Auto BCG Bolt Carrier Group - BAD-BCG-M16

Battle Arms Development BAD-BCG-M16\n\n- Laser Engraved BAD INC Logo\n- Bolt Carrier: 8620 steel, case hardened, machined from billet\n- Firing Pin: 17-4 H-900 steel, center-less ground\n- Gas Key: 4140 steel with Grade 8 screws, properly staked, machined from billet\n- Cam Pin: 4140 hardened steel\n- Finish: Black Nitride finished with an ultra-hard, corrosion-resistant top surface layer for wear resistance and minimal need for lubricants\n- Bolt: 9130 steel shot peened, Mil-Spec dimensions, CNC ground after heat treat, Black Nitride finished MPI/HPT\n- Extractor: 4140 billet, Manganese Phosphate Finished for Positive Grip\n- Enhanced: The new bolt carrier geometry was designed to reduce carrier tilt and the key bearing surfaces are relocated to increase reliability.