angel led leak

[Tarfu]

I wish to know what to do with a leak (come out of the hole when you open the breech door)

i've just made my angel tune by an WDP tech at the skyball!!!

And now it leaks :O((

[C.Carles-AOG]

Sounds like the exhaust valve.

[Tarfu]

ok and can I chek it myself ?? is it an o-ring problem you think

and by the way the leak stop after 20 shots (exemple I dry fire 20 shots rapidly and it stop)

[AngelGuy4200]

how does it sound like an exhaust valve problem?its leaking from the breech,so my guess is that its the valve stem.