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Old August 3rd, 2010, 12:15   #11
AKA Tsquared
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Join Date: Feb 2004
Location: Toronto
Yes, Prowin CNC m4 mag fills via valve
YouTube- ProWin CNC GBB M4 Magazine CO2 high pressure test

Knowing that it is less likely to leak is a good thing for me. I hate having all my mags leak on me when I just bought them!
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