I have the Drozd "Bumblebee" which uses 6 AA batteries for the fire control group and CO2 for the bb power. Goes through CO2 cartridges quickly but there is a bulk fill adapter available via Pyramyd Air and some others that allow retrofitting of larger Paintball cylinders. I've not converted yet but my son keeps taking the Drozd out of the den to use it outdoors so I'd better get going as you only get several magazines (three I think) per cylinder. It's actually a lot of fun with three different cyclic rates to hose down an army of "advancing" soda cans and green army men. A bit loud too, but that's also because we have plywood for a backstop so there is a fair amount of impact noise.
Last edited by PFDD; 01-13-2010 at 03:05 PM.