MGS Enhanced Bolt Carrier Group

For us, a standard Carpenter 158 bolt carrier group just would not do! Our EBCGs are 9310, which when properly heat treated, are superior in toughness to Carpenter 158. In addition, they are finished in salt bath nitride which gives superior surface toughness and corrosion resistance as well as providing a permanent lubricity which helps facilitate easier cleaning and removal of carbon after extended firing sessions or suppressor usage. The flaring of the rear of the carrier helps ease the transition of the carrier group into the receiver extension and helps eliminate erosion of the area. The bolts are magnetic particle tested to ensure there are no pre-existing stress fractures. There is mil-spec and then there is better. We chose better.