Since ya'll like spudguns so much I have decided to post another one. Yes I know that is a cheap dot scope, yes I know that that is an air pistol. The chamber is one and a half feet of 2" pipe. Valve is 3/4" modded sprinkler valve. The barrel is 3/4" also. This thing is powerful. I filled it up with water and it violently jerked my arm back. It's loud too, I painted it black with a clear coat but the clear coat made it look like crap. It had a red dot cheap scope thing on it but it fell off . Oh yeah I have a video of it dry firing. http://www.youtube.com/watch?v=fNZp8D4w5Dk I shoot anything from bullet shaped dowel rods to full co2 canisters.