I have my ssg gear box I just shimmed and fixed the (AOE) and fit the speed trigger in and if you want I can wire it to deans and input a better mosfet for a price it has echo 1 high speed gears and Jordan himself from umbrella armory fitted the piston and took some weight off of it shoots at 30 rps with an 11.1 lipo and I might throw in some extra goodies