It depends on the pistol, some are more finicky than others. My buddy's Ruger P89 chugs right along with USA mags while the same brand jams a P228. Some have had good luck with ProMag while others swear at them. Of all I've heard, and vere have had a negative personal experience, with MecGar mags. Finding after market mags that work is like going on a blind date, you might meet Ms America or Quasimodo's sister, it's all luck.
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So many pistols, so little money.