im buying non rev m for 8.00 a piece
Dave, thanks. Yep, all 5 of mine are non-Rev M. Dammit.
Brett... if you don't send them back, and want someone to buy them from ya... I'd be considerate of that?!
old on the left, new on the right
http://www.weaponevolution.com/forum/showthread.php?t=836

I had not decided to send them back just yet, I just didn't like unknowingly buying an older generation of something so I was just trying to figure out what I had and what the differences are. If the only difference is that the cap won't fit on the bottom, that's not a huge deal to me. They all drop from my AR just fine.
Do they all use the same anti-tilt follower? I noticed the follower on these non-Rev M mags is black and not green like on my others.