ok i got ya, a buddy helped me out with making a piston valve and i get how they work alot better after seeing one. am using a nerf vortex rocket as ammo its only for use against bunkers and tanks at scenario games.

what i have to figure out now is a way to make the exhaust valve work the way i ...

actaully i did search the forum and couldn't find what im looking for.

and yes i am talking about high pressures and have dealt with them before on my last hpa powered law rocket which works fine when the batteries arnt dead lol.

ok i got the parts t make a barrel and i would be using a 68/4500 hpa tank with a reg or i will be using a low pressure 3k tank with a adjustable reg.

my problem is i am not sure how to build the valve to keep it inline with the barrel. was thinking about using a simple ball valve and doing a ...