So it would also give more consistency from shot to shot? That's something I'm concerned about as well.

I need to stay within 500-600 FPS. The operating threshold of the valve is 120 PSI.

In a the video you posted of the low cost, semi auto trigger, you said you were getting near that with roughly that amount of PSI. That's why I was wondering if I needed the QEV and chamber.

Thanks to the many ...

cammyd32, thanks for the link! I already read through it, so I'm glad to know I was on the right track. They do work as I thought, so I think I can anticipate that they'd work for my application.

Sadly, yes, I'm going to be a gimp and use off the shelf parts. I'm basically taking a bunch of parts ...

d'oh.

When the external force disappears, the valve will reset itself and reverse the direction.

That means it's pretty much "normally open". Have you thought about plumbing the valve in reverse? Does that work on this type of valve?

Here's a similar one for a few dollars more that can ...

I found this manual 3 way valve. Would this work as a trigger for a gun?

http://m4.sourcingmap.com/photo_new/20120801/g/ux_a12080100ux0243_ux_g03.jpg

http://www.sourcingmap.com/npt-12-ac241p-pneumatic-position-way-spring-return-lever-manual-air-valve-p-258025.html?utm_source=google&utm_medium ...

New guy! Been searching around for info on a DIY airsoft sniper and I can see that this is the place!

Some back ground, I'm quite comfortable working with airsoft guns, gear boxes, barrels, hop ups ect. I'm also pretty versed in tanks, quick connects, valves ect. as I used to hot rod back in the ...