2a Armament Buffer Tube, Hardcoat Black Anodized, Billet Buffer Tube, Lightweight Latch Plate, Castle Nut, Mil Spec 2a-bta8-1 Product Type: Buffer TubeFinish/Color: Hardcoat Black AnodizedDescription: Billet Buffer Tube, Lightweight Latch Plate, Castle NutSize: Mil Spec