Works but with a catch (pun intended) - Elite Survival Systems Pocket Magazine Pouches

This is great for a little cover for your magazines. It's mostly for single stack, subcompact magazines. When pulling it out of the pouch, it may catch on your magazine's notch for the magazine release. To counter this, you just remove the magazine with a twisting motion and there's no issue in my experience. I like the cover so I don't get dirt, pocket lint, etc in my magazines when carrying them in the pocket.