G&G arp9
Never played with due to work abroad.
Replace inner barrel for tighter fit.
Spring replaced from M90 to M100 for more fps.
Stock extended for 11.1V lipos
Shimmed again.
New engine.
New piston and rubber o-ring.
Comes with drum mag for 1500 bb's
High cap allowed around 150 bbs
2x nano-tech lipo battery 1.4
Original inner barrel
Original spring.
Original box.