It will hold up the BCG for every 5-10 rounds, I wrote email to NEA and they said it's the mag issue, so I changed to the mag purchased from NEA, the issue still there.
What's wrong with it? Is the problem from the buffer tube?
I have a video here:
http://youtu.be/iO4nFPzSiPM
What's wrong with it? Is the problem from the buffer tube?
I have a video here:
http://youtu.be/iO4nFPzSiPM




























I just want to fix it and get it works.
























