Aero Precision AR-15 Upper Receiver Parts Kit, Mil-spec, NEW
This is a new Aero Precision upper receiver parts kit for the AR-15/M4 platform. Standard ejection port door and forward assist, build to mil-spec. Made in USA.
Fits most AR-15 platforms in 5.56/.223 and other calibers. Ejection port door and pin will not fit AR-10 or AR-308 platforms.
