Botach had these mags on sale so a picked up a couple, and thought I would share. Everything H&K makes is worth its weight in gold right? Not always it would seem. These mags look great, have an anti tilt follower and are made of a light weight translucent polymer; whats not to like? Well first and foremost they are incredibly hard to seat in my PSA lower. You really need to slam them up there like some mad doctor giving his father in law a colonoscopy. Once they are in there the texturing is does not fit the standard Ar15 magwell lines so it looks slightly out of place. Another con is that they are quite a bit wider than a standard GI mag. About an 1/8 of an inch wider in fact. In their defense, once seated all the way in, they have had zero malfunctions, and they drop free. I wont be buying anymore however, and I would rather have lancer, pmag or good old GI mags over them.