As discussed here, I have constructed my first piston valved gun. You can look there for pics of the inner workings of the gun.
Specs:
-interchangeable barrels, interchangeable chambers if I ever want to
-1.5" porting piston housed in a 2" tee
-no audible leaks past 20PSI
-1" sprinkler valve pilot valve
-stress ball bumper
-125PSI popoff and pressure gauge
I'm going to paint it soon, possibly over the weekend.
I love that I can pump the gun with just a bike pump.
I dry fired it twice (40PSI and 50PSI), and it was LOUD. I am quite looking forward to testing it out tomorrow.
![Very Happy :D](./images/smilies/icon_e_biggrin.png)