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