I don't believe the problem is really in the pistol. I believe it is in the magazine. The magazine has way to much play in it, vertically and simply poor fit. The outside dimensions of the magazines are simply undersized by too much relative to the size of the magazine well. To truly fix this problem, I believe S&W will have to replace the magazines. With properly fitted magazines this problem will go away. One thought would be to add a polymer outer skin to the mag similar to what Glock has done. This would tighten things up a bit and allow tight fit without binding.

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