This is a JG 608c, the G36c variant with V2 gearbox. It is a stock gun and is run with a 9.6v battery. This gun was painted with Dura Coat Pink Lady for my 13yr old daughter. Even though it is on the heavy side, she manages it just fine despite her dainty size. When she is pinned down under fire, all she has to do is look down and see the Hello Kitty decals and lady Punisher decal for a quick smile.