The reason why I left so much space in between the 1” fittings is for future mods (maybe a 2X valve or a supah valve.) I was dumb for putting the air filler to the right I would like to stick it more inward to prevent it from breaking off. Luckily I have some 1” sleeves lying around ( : so I’ll fllo...

Here is my first Pneumatic spud gun. It uses a 30” holding chamber and has a 3 foot barrel. It uses a single modified sprinkler valve to fire. I also have the *rare* SDR 21 pvc installed as the barrel. When I bought all the pvc I asked the guy for 1.5” not knowing I would get SDR21. I have heard tha...