GTA
PCP - HPA - C02 Gate => QB-7X Gate -W/Co2 & HPA => : ribbonstone November 24, 2007, 03:58:09 PM
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..just a quick note. If you can find (ebay, swap shop, etc.) one of the old 7oz. CO2 tanks, buy it. Same length as a modern 9oz. tank, but 1/8" smaller in diameter. Really cures the barrel-trouching problem some QB79's have.
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Small co2 tanks, under 2" in diameter and under 2 feet in lenght, don't have to be re-hydro tested. You might have to rebuild the pin valve or at worst have it replaced, and the 7oz. tanks leaves a nice amount of space between itself and the barrel.
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I cured mine with a 13ci wevo tank.
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If you want to run air, that's probably the best possible choice. Some of us want to run at least some of our rifles on co2.