CAA Tactical has developed a new range of AR-15 magazines. The MAG17 features a popup pin on the base plate that indicates if the magazine is full. This allows operators to easily feel which magazines in their mag pounces are full. The magazines also have a clear polymer window with round count indicator.
Also new is the MAG20, a 20 round magazine with the popup pin but no window or round count indicator.
[ Many thanks to John for emailing us the link. ]