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