Originally Posted by AK_Stick
That said, M9 mags, seem to be POS and require continual/often cleaning/maintenance.
I've had glock and H&K pistol mags loaded for years with no issues. I would never try that with my M-9. I clean its mags once a week, and verify function.
M9 mags would not be any different than any other mags. It's just that mags in the Military are far more heavily used, so they wear out much faster.
Cleaning mags (loading and unloading them repeatedly) is only increasing the wear on the springs. You're doing more harm than good.