Long nonferrous metal blast tube, tapering at end to larger diameter tube and attached to steel propellant inlet and air intake section; the propellant intake and combustion chamber section begins with a square grill, painted silver gray; followed by a screwed-on box-like section painted blue; followed by a tapered section painted red; top or front of this section, with square rim and matching square rim on back of blast tube; these two sqare rims screwed together; small American-made Champion spark plug, J-8, steel partly with a ceramic coating, screwed into side of larger diameter combustion area section of blast tube; blast tube, dark metal color, with larger, combustion area, made of welded sections; loose-fitting circular clamp, without a bolt, around rear end of blast tube.