G&P M4 Over-hop problem.

[Flatlander]

Originally Posted by Amos

Okay... so I threw in a guarder clear rubber...

I was having the same problem and for some reason it was the guarder clear that was the culprit. I threw in a systema rubber and it went away. This is weird because I've installed quite a few guarder clears on many other guns without this issue and great performance.

[Dusti69]

Originally Posted by Amos

I'm going to try to drop some one else's barrel and hopup into the gun to see if it works (Which in theory it should work perfectly.)

thats a good idea
what i was thinking is if your hop up chamber is a plastic one which i doubt you of all people here have on your gun then get a metal one or just plain buy a new one. the metal hop up in my 416 is a g&p which i assembled myself and im not having any problems with it

[F34N0R]

i would go for hopup rubber too, when it fits too tight, you may pushing it just a little further than it used to resulting poor accurancy.

i suggest taking your time installing it and/or try another one.