SpudFiles

Here's my gun, it's made from poly pipe threaded fittings with a 1.25L soda bottle as the chamber. It has a 3/4 inch ballvalve (might upgrade to a sprinkler valve) and I use it at 80 psi (every bottle I use I test to 100psi) It can send an AA battery out of sight straight up The bottle's lid was sanded and epoxied into the reducer. (so the bottles can be replaced)

This is my only real gun other than a few minis.

EDIT: Oh and the picture quality is so bad because I'm hosting this on spudfiles, and not on photobucet or somwhere like that.

You spent like 2hours getting your pics to work for that!


joking

How did you get the threads to work?

How did I get what threads to work????

sprite bottle

He means how did you get the bottle to thread into the pipe or am I wrong.

I drilled a hole in the lid of the sprite bottle, then epoxied it into the fitting.

Woh, very, Um. Nice!
You should be able to take it a bit higher than 120 psi.

Yeah, but I really don't want it to burst. It works fine with 80, and if I want it to be more powerfull I'll just upgrade the valve.