FIG 2 shows a side view of {HEAD ~ a modified blank cartridge} for {TAIL ~ use} with the novel replaceable blank firing barrel 
for
FIG 2 shows a side view of { HEAD ~ a modified blank cartridge } for { TAIL ~ use } with the novel replaceable blank firing barrel
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH