I have a few of their 30 rd Mini-14 mags. If they work as well as them, they should be very good. But it seems I have heard their AR mags are kinda so-so. Anything decent will feed ammo in a Mini-14 so I don't know if my comparison is a fair one or not. Unless Troy gives them his seal of approval, I think I would just buy the USGI or British Imperial Defense 30's and not risk it.
-Charging Handle