The gl-core buttstock features an integrated cheek weld, ergonomic buttpad and an interchanging tube adapter.It provides an unmatched fit on mil-spec and commercial buffer tubes, with a high level of efficiency and comfort.The ergonomically shaped rubberized butt-pad for quick shouldering and easy maneuvering of the weapon.Made of durable and light-weight fiberglass reinforced polymer composite, the stock has two integrated quick detach rear sling swivel connectors.This model has a black finish and an adjustable cheek-rest.Type: ButtstockFirearm Type: RifleFirearm Model: AR-15Material: PolymerFinish: BlackSwivel Studs: YesTube Included: No