Besides the wiring which I did not do. This gun has been gone through completely and has been totally DMRed (reversible if you change selector teeth on the gearbox shells alignment.) parts list: -manhunt cylinder -PDI barrel to the end of suppressor -modify cylinder head with stock rubber pad -modify metal nozzle - SHS 12:1s shimmed to perfection - SHS high speed motor - reinforced tappet plate, - ball bearing spring guide Comes with everything you need to get the gun started. Shipping calculated at checkout.