Can you use co2 on a smart parts shocker?

Answer 1

No, you can only use High Pressure Air tanks. CO2 will cause the gun to jam when liquid gets into the valve.

it wont "jam" but what will happen is you will first break o-rings in the regulator which will cause all sorts of problems in the marker itself, over-pressurizing the solenoid is just asking to break it, even if that doesnt happen you will be blowing out o-rings on your bolt causing even more problems (it would be spewing out co2 at this point)