The bcmgunfighter stock kit has a strong light-weight polymer stock for a mil-spec receiver extension.It features a snag free design, a modular vbost (vehicle borne operations sling tab), two different types of ambidextrous sling mounting options, including qd swivel sockets, a bcm 7075t6 mil-spec receiver extension, locking m4 nut, mil-spec carbine action spring, carbine buffer, and a bcm qd swivel mount end plate.This model has a black finish.Type: StockFirearm Type: RifleFirearm Model: AR-15Material: PolymerFinish: BlackTube Included: Yes