Randomkiwi and JSR...

Both your idea's combined seems like it would just about work best.
But instead of two O-rings I've replaced one by a flat washer to prevent wear and snagging from the O-ring having to pass a hole.


In this configuration you could take: a 15mm brass ( solder) endcap.
Drill a ...

If it's made the right size, the o-rings would not allow air past them.

By the way, with the design you proposed you would get about the same performance as using a common shop blowgun as a main valve. The blowgun body would also serve as the air chamber. This would be a good route to take if you ...

I don't really want to us a modded sprinkler valve or a QEV on ebay (because its too expensive )

Seriously?

$10 posted is too expensive?

Hmmm...

Can someone tell me why this design for a simple valve wouldn't work?

It will work, but:

1) You're pulling the trigger against the air pressure ...

Seriously...... you can get a qev on ebay for 10 bucks or less....not expensive at all.......

Well since I'm not near America or England it's $10 plus shipping usually equaling to about $20 - $40 so I might as well just mod a $20 sprinkler valve from my local hardware store. I've tried looking ...

Hi!

I'm looking to make my first 'real' Air rifle (one that doesn't use a ball valve)

I don't really want to us a modded sprinkler valve or a QEV on ebay (because its too expensive), and I dont trust myself to make a homemade QEV, therefore I made my own design for a simple valve.

Can someone ...