I read somewhere that the reduced cap i.e 10 round 40 cal mags had problems. Based on your description it sounds like these are what you have. Are you in a location that has cap. limits still? If not, you may want to consider upgrading to the hi cap/standard mags. I have not read of any issues with the standard mags. Wonder if one of my machinist froends could whip out afew hundred in Al and I could make some cash to cover the cost of the new gun.