Picked these up in a package deal, but I'm more of a Magpul kind of guy. 33 magazines total, 30 with the yellow Magpul anti-tilt follower and 3 with the original green follower. Definitely used mags. I've never used them so I can't speak for functionality, but they all look right, mag bodies and followers are in shape, spring tension feels good. I picked 5 at random and loaded them up and unloaded by hand and everything felt correct.
$275 for the whole lot and I'll cover shipping. Otherwise, $8 per mag and shipping on top.