thhanks for that sir. i already done building my marble gun. but instead i use laquer thinner as my combustion to my chamber. man it really gives boom instead of pssst. but this really could kill a man instead of fun.

yes i do have pressure gauge and 2burr mounted air compressor. would any of this item would help?

http://www.spudfiles.com/basic_rules.php

I want to build a marble gun using a plastic pvc pipes. usually used on faucet or home water systems. and im going to use my old air gun oxygen tank as my air tank of my marble gun. so my question is do i need to use any of this things to help me building my marble gun? https://www.abestmeter.com/ox...