Listing this as not working due to it being several years since I last used it. It may need some orings, although I went completely through the marker and Regulator before I stopped playing and put new orings in it. This is a heavily updated ion, lots of bells and whistles, shoots like butter. It has aftermarket body super sweet, it does require two shims from body to frame. If you remove the body, be sure not to lose the shims, Tech T Bolt, aftermarket trigger, Regulator cover, micro gauge, aftermarket feedneck, custom on/off ASA.It'll compete with anything in the right hands.