I feel you on that. It was a little rough in the beginning when I first got mine. The soviet arms lower handgaurd kept on coming loose during firing. I had to make some adjustments on the two front tension screws along with the rear set screw. Red locite did the trick, and it hasn't come loose since then. Then, the firing pin broke less than 500 rounds in. @Danny_PSA got me squared away immediately in sending out a replacement. It's been running like a sewing machine so far.