AR-15 M16 M4 A3 Flattop Upper Receiver Parts Kit
This kit contains all 8 parts needed to complete an flattop A3 upper receiver.
Forward Assist Assembly
(Forward Assist, Spring & Pin)
Ejection Port Cover Assembly
(Port Cover, Rod, Clip & Spring)
Charging Handle Assembly
Upper Receiver, Bolt, Bolt Carrier, and Barrel assembly not included.