Co2 guns are gas guns. There is no separate forum for PTW users, or polarstars, or daytona guns, or classic guns, or bullpup owners, or WWII reenactors, either. The forums we have now are largely all-encompassing.
Making too many sub-forums would make the overall forum look all but barren. If there is enough interest on a particular subject, I'm sure they could be added, but a sub-forum that'd get used twice a year isn't worth coding, or the extra bandwidth requirement, IMHO.
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