Magpul PMAG GEN M3 Window 5.56x45mm NATO AR-15, M4 30rd Black Detachable

The next-generation PMAG 30 GEN M3 Window is a 30-round 5.56x45 NATO (.223 Remington) polymer magazine for AR15/M4 compatible weapons that features transparent windows to allow rapid visual identification of approximate number of rounds remaining. Along w