If you caught the last installment of my A&K M60VN Review, you no doubt saw the underwhelming footage of this general purpose machine gun's performance at 30 yards. As I stated in that blog entry, I had a sneaking suspicion that there was an internal issue with the hop-up. Turns out, I was right. Somebody at the A&K machine shop didn't quite have their settings dialed in on the CNC machine. I think my photos pretty much explain what happened. See below.
First, to get to the hop-up, you must remove the outer barrel on the gun using the barrel release lever seen just above the hand guard.
|A&K M60VN Review - Fixing the hop-up|
Tom Harris for the Pyramyd Airsoft Blog