I've got a chance to get ahold of five HK 5.56 mags for a price that's competitive with Lancers and PMAGs versus the $50+ I normally see them for and I'm considering grabbing some for the hell of it. They're the new polymer ones with the little chevron-shaped window at the bottom, not the old steels.

I searched and searched and came up dry. Any opinions by people who have used them? Are they GTG? Crap? Awesome-but-overpriced?

Yeah I was gonna say why get them if pricy but if at the Lancer price point buy them, you can always unload them for more than you paid on HKpro if you dont like them.