The Anderson Manufacturing Bolt Carrier Group is manufactured 100% to military specifications! With a chrome lined, 8620 carpenter steel carrier, 9310 Super Alloy Steel bolt, and properly staked gas key, this full-shroud carrier group is perfect for you next build! Features.223 / 5.56 bolt assembly is compatible with .300BLK as well!Fully mil-spec constructionChrome lined carrier and gas keyDurable phosphate finish9310 steel bolt is MPI tested8620 steel full-shroud M16 style bolt carrierProperly staked gas key
