I've used the Dawson Precision 10 round 9mm mags with the tactical base pad since 2015. No problems. They are made by Metalform and Dawson installs their base pad assy.
I have used the Wilson Combat ETM HD+P .45 Auto mags since 2013 without a single failure. The square spring is the sh!t- those mags run in all my 1911s.
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