I got twenty of these from DSG that are made by D&H that have been great mags. I also have some MagPul but only get them with the cap as I've heard of the lips spreading if the cap isn't in place and they are left loaded for a long period.

There are some cheap crap mags that are passed off as "USGI" but the ones I've used that were real GI mags were fine. The ones dropping them onto rocks or concrete can wind up with bent feed lips just like any other mag.

I'll never be as hard on my stuff as the GI's are now in the sandbox, so I'll probably never wear out what I've got.

“You never need fear a man, no matter what his size. When danger threatens, call on me, and I will equalize.”
Samuel Colt.

�Common sense is genius dressed up in work clothes.� - Ralph Waldo Emerson