Thanks for the heads up John!
Just FYI, and this is only my experience - I bought 3 different refurb CO2 pistols from Wing Supply (1 for me and 2 for my nephews). All broke within a few days or after the 2nd or 3rd CO2 cylinder before I could give them to my nephews and teach them how to shoot. 1 of them will not take a new CO2 and will dump the gas in 15-20 seconds from where it gets punctured. One other has a slightly slower leak that takes ~2 minutes to empty the cylinder, and the other shoots 100+fps slower than advertised (only 250-280fs) and can't hit the side of a barn. If you don't keep shooting to empty the CO2 the gun will do it for you 10-15 min. after you stop shooting. So I am of the opinion that many of these guns will be hit or miss, but for me it has been all miss.Harry