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Old March 19th, 2014, 14:28   #3
audi_bhoy
 
Join Date: Mar 2009
Location: Trois-Rivières
It's basically how a PTW works. It fires and then it cycles the spring back, instead of cycling the spring and then firing.

Just make sure you release the pressure on the spring when you are done, to remove unnecessary pressure on parts while storing.
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