Thread: WE Co2 M4 Mags
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Old August 31st, 2012, 23:57   #3
Ross's Avatar
Join Date: Nov 2009
Location: Winnipeg
you'll have to change the co2 often. The fps will be a bit higher. Some blue gasket maker and a valve key and some teflon tape will keep your old green gas mags working indefinitely.
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