SpudFiles

The "handles and triggers" are blowguns which actuate the valve, these are not necessary for a ball valve.

Seriously, check the how-to section...it explains everything alot better than I can

I used a sprinkler valve in my cannon and it's pretty f-ing powerful, so I can at least attest to that.

I was just saying that because it your original post sounded like you didnt know really what a pneumatic was.

Anyway, you can try the capgun. One member was trying to do something similar.

Yes they (modded sprinkler valve) do work. You can mod the sprinkler valve with a ball valve. People use blow guns because it is more like a real gun with a trigger. Its quite simple once you do the configuration for yourself.