LBE Unlimited, AR15 Milspec Buffer Tube Kit, Buffer Tube, Recoil Spring, Castle Nut, Receiver End Plate, Recoil Buffer, Colt Gray Finish

LBE Unlimited is a quality manufacturer of AR-15 parts and accessories. This particular item is an AR-15 Mil-Spec diameter carbine receiver extension kit. This Complete kit can be used as a replacement unit or as a spare for a new build. This unit comes w