[shreddybear]

(EDIT - Issue has been solved. I finally narrowed down the leak to a bad Input Fitting. It's the silver piece that feeds into the top receiver and connects to the black internal air line. It's attached to the puncture valve. I checked my seals before use, oiled them, everything you should do. Tried Teflon tape etc... Seems as if my Input Fitting was over machined as it fits loosely where it attaches to the brass gas line. Tippmann sent the new part free of charge and it fits much tighter. Thanks all for your Input! ...No pun intended..)

Hello!

First time poster, longtime reader. If this is breaking any rules, please let me know and I'll fix whatever needs fixing. Haven't found any other threads about this particular issue...

Does anyone else have experience with a leaking Tippmann M4?

Problem...

So...recently got a Tippmann M4. Out of the box it leaks unfortunately when I use a 12g. I have only used 12g carts and plan to stick with these. Can't test with anything else.

The leak begins when I first push the mag in. Leaks quietly for a few seconds and usually stops. Sometimes it only stops after the first shot or two. Airing up?

After about 20-40 shots (takes less if shot fast), the quiet leak comes back and doesn't go away.

I've been in contact with Tippmann for the past couple weeks as well as the Tippmann Airsoft Owner's group on facebook, yet can't figure it out. They're super helpful though.

Things I've tried...

-Putting some tape under the 12g to keep it against the seal, hasn't worked.
-Put Teflon tape around the top of the 12g to keep the seal, no luck.
-Put Telfon tape on many places to stop leaking, no luck there.
-Made sure to oil/grease every o-ring and spring that requires it, no luck.
-Found only one seal with some damage (ROF screw seal) and replaced it, leak appeared to be less after this, but I've been told this seal should not affect the airflow...it's the closest I've thought to have been finding the issue...
-Taken the entire thing apart and back together again looking for problems, but everything looks good.

I'm still in contact with Tippmann, but I'm pretty down about this. Really want to get this thing game ready!

Anyway, I should mention that there is some plastic worn away where the ROF seal sits--it was also the seal I found missing a chunk out of it. I've been told this seal shouldn't have anything to do with a leak, but I'm curious why it's there?

I'm going to either fix this or send it back, I'm just stumped! Any thoughts and ideas are very much appreciated.

At this point, I would really like to know if anyone else has had such an issue?

Thanks again