@ ALL: Blech, thanks. I'm not very knowledgable in firearms and such, and just thought this might work here. Well, back to the drawing board...
Thanks for your time.

I confirm that my Ace has them. The come in sizes that thread onto 1/4" and 1/8" NPT fittings, and you can just connect those to a chamber using steel pipe fittings that will connect to your metal pieces.

Okay, so due to new new parental restrictions involving the power of my work, I'm going to try to focus more on a higher rate of fire. So I'm going to try to build an automatic paintball gun. The valve will be similar to the one in this thread: http://www.spudfiles.com/forums/semi-auto-piston-under-...

@ Spudfarm: Joey Jordison/Slipknot is GOD!!!!

I'd think Seven Nation Army & The Hardes Button to Button by White stripes wouldn't be incredibly hard, but I'm not a percussionist.

Dude, get your friend to teach you.

Hmm, I think ice/pykrete would probably grip the grooves well since it's a good seal in the barrel. To see if the projectile spins, you might want to try this premature idea of mine: Take a sponge, and shape it into a small rod that can be tightly shoved into the barrel. Weight one end of it so when...

And for people who can't buy stun guns Anyone , regardless of country or age, can buy a stungun. I asked my parents, and they said no. :cry: Back on topic, I think you should give it a shot. Considering it's high rate of action, it could become quite useful in the creation of a high ROF combustion....

@ Leonard: I think that looks like a great idea. If you can get a good seal between the exhaust vavle and the input valve with that piston, I think it'll work. The extra pressure from the air source might actually help push the piston forward if it can't get behind it. EDIT: With the three way valve...

Since it's a stronger spark than most BBQ igniters, won't it burn the fuel more efficiently and result in more power?
That's how pulsar spark plugs are supposed to heighten performance anyway.

Could you encase the potato in a big @$$ dart? Might improve aerodynamics and general flight path. Do you have to use combustion? I'd recomend you try a pneumatic or a hybrid since they trump combustion in power and range. Also, prices depend on where you live. As many will happily remind you of, pi...

Very nice! Blowguns are by compressors/power tools by the way in Ace, Menards, Lowes, and Home Depot. I had a hard time finding them too. But if you like the ball valve, I'd recomend you get it spring loaded, just to have less ofset of the barrel when firing. Also, how are those rifled barrels worki...

I got about 20' of it at Menards, but you can get it an Lowes and Home Depot. My hose is 200 psi rated, and should be around hose barbs and clamps in the same aisle. It's not ussualy by the pipe though.

What do you plan using it for?
And where the heck did you get the money for one of those things! I was just looking at prices, and d@mn, they're expensive!

1/2" plywood
At what range, and what gun might I ask?

System of a Down's awesome, but they're on Hiastus, or hiatus, or haitus, or whatever the fork it is. My Chemical Romance is also good, but I would consider them too soft to be metal. Avenged Sevenfold is also pretty good. My friend highly recomends Goat Whore :? Reel Big Fish is a good ska/rock ba...