The Luth-AR Stripped Upper Receiver is an A1 style upper receiver forged from 7075-T6 Aluminum and hard coated with Type-3 Mil-Spec Anodizing. The AR-15 upper features an A1 carry handle. This upper does NOT have M4 feed ramps in keeping with the military A1 uppers. Reciever is stripped and not not include A1 rear sight assembly, charging handle, teardrop forward assist or dust cover. This upper will fit any Mil-Spec lower receiver.