DealAnderson Manufacturing M16 (.223 / 5.56) Auto Complete Bolt and Carrier Group is chrome lined, made from 8620 steel, Bolt is made from 9310 steel and coated per mil spec. MPI Tested. The 223 Bolt and Bolt Carrier Assembly comes complete with cam pin , firing pin and firing pin retainer. The Anderson Manufacturing M16 / AR-15 BCG is manufactured to military specifications and will work with any mil-spec AR-15. Features Anderson Manufacturing logo on the side. .223 / 5.56 bolt assembly is compatible with .300BLK as well! Fully mil-spec construction Chrome lined carrier and gas key Durable phosphate finish 9310 steel bolt is MPI tested 8620 steel full-shroud M16 style bolt carrier Properly staked gas key from Tom's Tactical (Product AM-10-08-M16-LOGO) |