Oh, one other question a 1/8'' hex or pipe nipple?

Yah man that helps thanks for the info.

oh ok, do u guys know any programs i can get to draw this stuff out. Do u have a pic of that kind of gun you described PVC?

I wanted to fill the expansion chamber, like you do when you fill up a ballon when it gets big enough u turn it off so that set up wouldnt work for that?

So if i use that one from the link that i showed, it wouldnt work to regulate, meaning i couldnt shut it off after a certin pressure i would have to wate for the Co2 to run out of the cartrage befor it stoped?

Will that one from that site work or no?

Hello, im new here and am trying to make a paintball mortar, and have an idea on how to make one, but i want to make it were its co2 powered and was wondering. Is there any kind of adapters I could use to put in the expansion chamber, instead of a tire valve, and use 12 gram Co2 cartrages or any kin...