{HEAD ~ The drive apparatus} can be modified, with the addition of a gear and chain, to reset or activate {TAIL ~ steel} or other reactive targets 
{ HEAD ~ The drive apparatus } can be modified , with the addition of a gear and chain , to reset or activate { TAIL ~ steel } or other reactive targets
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH