SpudFiles

Or @JSR you could try and replicate a resonator type muffler but that may prove to be a bit tricky with the size of pipe you would be using as a barrel. But if made right it should work great becomes it imposes no flow restrictions on the exhaust.

I think the pressure washer handle will stand up to the liquid co2, I tried using propane in place of air on my bbmg and the liquid propane froze my blowgun but not the pressure washer handle. Anyways, go for it! I want to see the damage pics!

These guns already operate on the venturi effect, it just isn't as efficient as it could be.

Well, I realize that.......That is why I was suggesting using an actual venturi tube!!