PVC will suitable to the cold of CO2 though correct?

OK its not really a spud gun, but the project im working on is relying on alot of the same princibles. I think ive read somewhere before that ABS is bad for pneumatic spud guns. Why is that? And if the co2 flowing through the system is never stoped and pressurized, would ABS still be a problem?

OK heres what I have so far: Power source: Propane from a Colman 16oz bottle (Its roughly 300psi as I understand) stored in a sealed container filled from an airsoft gbb fill valve. The container will be either PVC or ABS (PVC would be nice because it is cheaper, but if ABS is an overall safer desig...