all very good pointsWhy? Which are better? Which are cheaper? Which are lighter than a witch? Which work best as a temporary doorstop?
And which metal mags? Cheap, no-name surplus knock-offs, HK 416 mags...?
Be specific, man!
Rust? GI magazines are aluminum bodies and floor plates and everything else is the same as a PMAG. Spring steel or stainless magazine spring and plastic follower. An aluminum GI spec mag has no more likeliness of rusting than a PMAG.my votes for pmags.....i love the look of them and less parts to rust.