Luth-AR AR-15 Retro Slick Side A1 Upper Receiver Assembled w/A1 Charging Handle Black. Correct early-style carry handle contours with A1-pattern rear sight housing. This version of the Assembled Slick Side A1 includes the charging handle A1 Rear Sight and A1 Ejection Port Cover Door with silver spring assemblies installed. The Slick Side A1 Upper eliminates the shell deflector and forward assist. Charging handle included. All points where other parts attach are finished current mil-spec dimensions. Current production AR-15 components will fit perfectly. Note that the AR-15 / M16 Slick-side Upper Receiver is period-accurate therefore it DOES NOT have M4-type feed ramps found on most current-production AR-15 flattop upper receivers. Specifications for Luth-AR AR-15 Retro Slick Side A1 Stripped Upper Receiver Assembled w/A1 Charging Handle: Manufacturer: Luth-AR Color: Black Finish: Hard Coat Anodized Fabric/Material: 7075-T6 Aluminum Gun Make: AR Platform Gun Model: AR-15 Features of Luth-AR AR-15 Retro Slick Side A1 Stripped Upper Receiver Assembled w/A1 Charging Handle Does NOT have M-4 Feed Ramp No Shell Deflector No Forward Assist A1 Rear Sight Assembly Installed A1 Ejection Port Cover Door with Silver Spring Assembly Installed Package Contents: Luth-AR AR-15 Retro Slick Side A1 Stripped Upper Receiver Assembled w/A1 Charging Handle A1 Charging handle A1 Rear Sight A1 Ejection Port Cover Door Luth-AR UR-01-RSS: AR-15 Retro Slick Side A1 Upper Receiver Assembled w/A1 Charging Handle Black