Some our tanks (1/6) have .22 blank guns. When we do shows inside we are not allowed to fire blanks. My Stuart has a 12v compressor, hopper, and momentary switch. When I flip the landing gear switch I get a puff of smoke (baby powder). The Armortek Tiger has a option for a 12 guage black powder blank six shot. I have yet to add this option. Im almost sure I would get into trouble with that one.