I recently purchased a brand new KWA LM4 PTS MAGPUL EDITION, I am new to GBBR's and to this forum.
Whenever I shoot my KWA LM4 PTS MAGPUL EDITION, with the provided PMAG, on full automatic, filled with King Arms SOFTAIR GAS, and filled with 38 KWA PERFECT 0.25 g SUPER PRECISION BB's, the gun will shoot about half of the rounds in the magazine, then it will stop shooting half way. At this point, the bolt will be stuck, at about the half way point, and gas begins to leak from the magazine.
While shooting the gun on full automatic, I am holding down the trigger until the problem above occurs. I understand that doing so is not good for the gun, but the gun should be able to perform the task above without any flaws. After the problem above is resolved, I will switch to shooting the gun on full automatic in bursts.
What I normally do is pull the charging handle back, and the bolt will slam to the original position by itself. If there is any gas remaining in the magazine, which there really is not, the gun will shoot the round in the chamber with little to no velocity, but the same problem will occur repeat. The bolt will be stuck, at about the half way point, and gas begins to leak from the magazine.
Additionally, I hear the magazine hissing, and I am assuming that it is leaking gas, but I believe that is not the problem, is it?
This problem occurs repeatedly, and it really discourages, me, as I have very recently purchased this product solely because of the high reputation and reviews KWA and this guns have recieved. My gun proves otherwise.
If a video is required to properly demonstrate this issue, I will post one.
I hope somebody will help me, please!
Edited by paulle, 03 May 2013 - 03:05 PM.