Anderson Black Nitride Bolt Carrier Group - 5.56 NATO

Anderson Black Nitride Bolt Carrier Group - 5.56 NATO The Anderson Manufacturing AR 15 Bolt Carrier Group is manufactured to exact military tolerances and specifications. The carrier is 8620 carpenter steel. The bolt is made of 9310 MPI-tested super alloy steel. The gas key is properly staked. Comes complete with cam pin, firing pin, and firing pin retainer. The Anderson Manufacturing AR-15 bolt carrier group would make a nice addition to your next build. These top-quality AR-15 bolt carrier groups are Black Nitride-treated for excellent corrosion and wear resistance, providing extended durability and service life. Features 8620 Carpenter Steel Full-Shroud M16 Style Carrier 9310 Super Alloy Steel Steel MPI Tested Bolt Black Nitride Treated Drop in Ready .223 REM/5.56 NATO/.300 BLK Bolt Assembly Constructed to Mil-Spec Properly Staked Gas Key Made In The USA