I bought my BG in Jan. I have a few hundred rounds through it and it has performed flawlessly. I put some lock tight on the laser screw to take care of the backing out problem. It's pretty accurate at 20 feet and I love the gun. It shoots anything I have put through it. No problems with the field take down. I am starting to have this problem. The slide sometimes does not lock back after the last shot and when I slap the mag in with the slide back it closes without hitting the release. Any suggestions before I send it in?