This was a project of mine that I’m now parting with. Works greats! Has an ARP 9 gearbox so we all know how well it performs! •G&G CM18 upper receiver •G&G ARP 9 lower receiver •G&G ARP 9 gearbox •Perun miniature MOSFET(smallest on the market today) •G&G hopup unit w/Prometheus bucking •18k high torque motor Comes with: •long suppressor •angled fore grip •rail covers •Red dot(not sure about functionality but it worked last time I had a battery in it) •one high cap ARP9 mag Only missing one thing and that’s the bolt catch release button as pictured but doesn’t effect performance at all. +$20 for shipping