Assuming that the gun could handle the difference in pressure (an issue I intend to solve next), what would happen if I were to buy a refillable 12g Co2 cartridge and fill it with compressed air instead? What would be the risks/benefits? I know there is always a chance something can go wrong. Overfilling the cartridge could cause it to leak or explode. I’m asking for answers aside from the obvious dangers of being stupid or careless.