I bought one, too and couple of weeks ago. We took it out and put 200 rounds through it. Yes...we had 4 that flipped and bent. Each one jammed about midway in the magazine. Had to work it out. I thought it was due to loading the magazine. After, carefully loading the mag, the problem disappeared. But, after reading your posts, maybe we'll look into it more critically. I intially thought it to be a mag problem, too. I have 4 more mags on order; however, they are backordered. Oh we were using the Remington Yellow Jackets. Other than this, it is a really fun gun to shoot.