Help with a build?

[Mc Frown]

So I'm sick of making really gross builds because of my horribly limited resources. They're never airtight and usually end up with a much lower power than I desire. I had an idea for a full auto gun with a detent and would like some feedback before I actually try and make it.

So the general idea is this:
Pressure washer gun threads onto some Male/Female size reducer, that brake line can thread into (the flared end tubing with those hexagonal slip/thread deals on them). The Brake Line is a very short piece that then threads into an appropriately sized nipple (sawed off if need be), with an O ring sandwiched between the fanned end of the brake line and the fanned end of another piece of brake line coming out of the nipple which is the barrel. Mostly I want to know if this detent would be effective/airtight (proovided I epoxyed or loctited the threaded deals on the brake line so [hopefully] air couldn't escape.

And as far as a magazine goes:
Introduce a T fitting before the brake line (perhaps direcly after the pressure washer gun). Pipe comes off the top part of the T, perhaps a ball valve, more straight pipe and then a removeable threaded cap? I don't know if the BBs would be agitated enough or what though.

[warhead052]

Yeah that should work. Give it a shot. Just be ready to possibly put in more pressure than 100 psi...

[jackssmirkingrevenge]

If the o-ring is properly compressed, you shouldn't need to seal the threads to avoid leaks.

The problem with o-ring detents and BBMGs though...

[Mc Frown]

So you think BBs would actually flow instead of just sitting on the bottom of the T letting air pass over them?

I'm scared because the airs input and output would be inline.
Maybe if it was filled over halfway idk.

[jackssmirkingrevenge]

If you're putting enough air in it should work.