LUTH-AR LLC SLICK SIDE A1 5.56 NATO ASSEMBLED UPPER RECIEVER The Luth-AR Assembled Slick Side A1 Upper Receiver is made from 7075-T6 aluminum forgings machined to final dimensions. Correct early-style carry handle contours with A1-pattern rear sight housing. The assembled version of the Slick Side A1 includes the A1 Rear Sight and Ejection Port Cover Door Assemblies installed. The Slick Side A1 Upper eliminates the shell deflector and forward assist. All points where other parts attach are finished current mil-spec dimensions. Current production AR-15 components will fit perfectly. Charging handle and components sold separately. Mfg: Luth-Ar Llc