I have .25" od aluminium pipe. Since they don't make fittings for this unstandard sized pipes I have concluded that epoxy will have to be my alternative since I can't weld. I will have to epoxy two pipes together at a 90 degree angle (like what a tee would do). I am wondering which type of epoxy wou...

About how much fps could I get from a 6" chamber. I am using a qev and 4 way valve as the pilot. Also how many shots could I get from a 20 oz co2 tank with a 6" chamber.

I am using a minimatic air cylinder. Edit: If I made my chamber 24" with 3/4" pipe with air from an hpa tank regulated down to between 200-300 psi, how many shots could I get from a 3000 psi 48 ci hpa tank. I tried to do the math, but got a pretty low answer (like around 50) so I think I did the mat...

I'm making a hpa powered bb gun (unless someone can convince me to use co2 instead). I want to regulate psi down to about 300 psi because most of my valves won't be able to handle anything more than that (300 psi is already pushing it). I am wondering how big I should make my chamber so I can get a ...

The reasons why I wanted hpa was because it is cheaper (I mean the price of the tank and setup) and I wouldn't have to worry about freezing valves. Would I really get that much more shots. How many ounces of co2 would equal to a 48 ci hpa tank

What do you suggest I do to prevent this. Also I am going to get a 48 ci 3000 psi hpa tank should I get the ninja aluminum n2 or an empire nitrogen n2. What do you guys think I should get.

So can you mod the regulator that comes with the tank or not.

so if i buy this regulator, would I replace the one that comes with the tank or just add it on with it.

yes I have and yes I've seen your video. I just wanted to know if anyone has done any mods to the attached regulator instead of buying another one. Edit: http://www.ebay.com/itm/paintball-air-N2-regulator-HPA-3000-psi-NEW-/280919649963?pt=LH_DefaultDomain_0&hash=item41681daeab how is this one lookin...

I am going to get an hpa tank to use on my gun. However the regulators that come with tanks only regulate down to around 800 psi and I want to regulate between 0-300 psi. Mainly because this will allow me to get more shots and you can't really find any valves that can sustain that high of pressure. ...

How much do they run for. I am looking to regulate between around 100 to 300 and for less than $30
Edit:
Can you use co2 regulators or other types of regulators for this.

So would I need to regulate my hpa tank to a lower pressure

Do you know a 3 way valve and qev that can, or is that not common. An hpa would give out around 500 psi right?

Do you think this valve is any good. I know its no mjvo 3, but it is a good price. Do you think it could hold up 500 psi.

What is the difference between universal and normally open. Did you read the writing around the ports?