Have 5 of these, me & some buddies tried doing some CQB/CQC games but outdoor fields are better. They have complete gearboxes along with a battery each. 4 of them have stocks & 2 or 3 have grips. They are missing some stuff. If youbuy more than one I'll sell them cheaper. Can travel throught mostvof So Cal from L.A. to I.E. to San Diego