Great pouch that holds a lot but doesn't take up too much space on a battle belt. The retention is very good; almost too much for glock 21 mags. I think it will be a little smoother once it break in more. It should be noted though it is much more difficult to get the pistol mags out of their is not a rifle mag in the pouch as well because the whole pouch flexes more. The only other downside to this pouch is that I have to move it a little farther to my support side because it is kind of difficult to go prone on it due to its thickness. It works very well with my current set up and all things considered I would purchase it again.