I bought these for use in my CETME L as an upgrade over the original mags. They are about the same weight as the original with better follower and floor plate. Fit and function is great in both CETME and AR. Apex is the only place I have been able to find these KCI steel mags.

Good Price for steel mags coating is a glossy black smooth finish ordered 3 of them one of them is a bit over sized tested on 3 different lowers Aero precision Stag Arms and Anderson all would drop free except the one i mention that was over sized. holds rounds fine i loaded each mag to 30 and dropped them on a carpeted floor then smacked the top of the mag on the floor a bit couldn't get the rounds to fly out. floor plates seem to bend a bit when dropped while full but that's probably normal. If you are looking for STEEL ar mags these are a good deal but if you do not care what metal they are made of i would recommend D&H aluminum ones they are the same price and if you are not beating the hell out of your mags they will last very long. Shipping was fast but expensive for the cheapest option 15$ to ship to Northeast PA.