More WE tech g39c issues

[Blood Red Smurf]

It seems like only yesterday i posted a topic about this gun and its jamming tendencys but with that fixed arose another problem.Ill fire about half a magazine before the ROF slows down drasticly followed by the release of all the gas in the magazine. Ive checked both the magazines for leaks there are no apparent leaks but just in case i let the O rings sit in silicone oil for a bit.I also lubricated allmost every moving part in the gun.But the problem still persists, Anyone else have this problem or can tell me whats going on? I really enjoy this gun and id hate to have to trash it.

[DesertEagleLover]

Dude Matt. Post another thing like this so people can see it!!!!!

[I Slap Fat Kids]

When it starts to slow down, is it during sustained full-auto fire?  How much gas does it usually discharge at the end?

It sounds like it could just be the cool down effect.

If you're not dumping the magazine, try filling the magazine from a gas canister that's full.

[KKEOUGH]

I'm also having problem's with my WE G39c. Where it actually doesn't fire at all or if it does the gas doesn't release a continues blast. 

[I Slap Fat Kids]

I'm also having problem's with my WE G39c. Where it actually doesn't fire at all or if it does the gas doesn't release a continues blast. 

Are you saying it doesn't release enough gas to cycle correctly or that it doesn't dump what's left in the magazine when it does fire?

It sounds like it could be the firing pin or something in the hammer mechanism.  Have you taken it down, cleaned it, and checked to make sure all the springs and other components are seated properly?