Oh boyyyy...first build...been working on it for a total of two years and it's gr8. Starts with shimmed and AOE corrected ares/elite force gearbox with micro switch trigger Upgrade parts- SHS 13:1 gears Upgraded spring (not fps wise but quality wise) Matrix CNC aluminum nozzle LONEX dual o-ring cylinder head LONEX polycarbonate piston with 10 metal teeth LONEX mushroom piston head Misc parts and details: Eventually I would get new bushings but they with work fine for now ON OF THE MOTOR CONNECTORS IS MISSING...A NEW ONE MUST BE SOLDERED ON this also comes with a gate warfet and an 11.1 lipo Which together are worth $100 alone and have never been used!!! No trades PayPal only I pay the first $5 of shipping...you pay the rest Message me with questions!