I've tried a few aftermarket mags and all the extension on the market and the Hoz and Shield has been the only one that I haven't had to mess with to get it working correctly out of the box. Well worth the money and I'll be switching the rest of my magazines over now.

We have devious MD's who like to include time critical stages with multiple required reloads. And the magazine must be physically changed, not simply put against a holster. These were a gamechanger for those stages! I like it so much, I bought another for my extended magazines.