You have the older version grey magazines. These are being discontinued to be superceded by the Evolution magazines, of which I have three of, and they are bloody marvelous! I run a CMMG .22 conversion bolt in my AR-15, plus the anti jam charging handle, forward assist adapter, and bolt hold open actuator. Everything works like a charm, it's like having two rifles in one! I still shoot open sights, but I can easily group about 1" - 1.5" at 50yds, and about 5" at 100yds. Overall CMMG make a great product that's going to deliver years of fun.
Webley Vulcan .22, Webley Tempest .177, Beeman Kodiak .25, Beeman R9 .177, Weihrauch HW30 .177, Slavia 618 .177, Colt Commander .45ACP, Browning Hi-Power 9mm, Bushmaster AR-15 5.56/.223