The Action Army AAP01 Upper Receiver Kit upgrades your AAP-01 GBB pistol with a new CNC-aluminum upper receiver, charging handle, and hop-up unit. The redesigned ejection port and picatinny rail on top make it easy to mount accessories. The new charging handle is ergonomic and the hop-up unit is adjustable for both hop and BB weight.
This kit is a must-have for any AAP-01 owner who wants to improve the performance and accuracy of their pistol. It is also a great way to customize your AAP-01 and make it look unique.