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 These are being discontinued to be superceded by the Evolution magazines, of which I have three of, and they are bloody marvelous!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.