You know I have to wonder why so many reccomend pmags.
Monkey see monkey do.
No, not really. But he hit the mark with the post not quoted.
It's their springs and followers that make them better. It's cheap enough to just buy pmags and be done with it. They are good quality.
But I'd never throw away the USGI metal bodies. Just add magpul springs and followers and you're good to go.
So if I'm buying all new, it's pmags. If I'm repairing old mags, it's new spring and follower from pmag.