After reading about the Surefire mags,, I stumbled on this link suggesting Colt likes the MWG 90 mag.
http://www.thefirearmblog.com/blog/2...e-for-the-iar/
I like the ergonomics of wrapping the mag out and around the frame. Keeps the total height of the weapon to a minimum.
But at the same time it has unbalanced the weight distribution off to the left side.
Anyone have any 1st hand experience with these??
PS: I still like the old 20rd for compactness,, but I'm a FOG...