The PMAG 30 AR/M4 GEN M2 MOE Window is a 30-round 5.56×45 NATO (.223 Remington) AR15/M4 compatible magazine that offers a cost competitive upgrade from the aluminum USGI. It features an impact resistant polymer construction, easy to disassemble design with a flared floorplate for positive magazine extraction, resilient stainless steel spring for corrosion resistance, and an anti-tilt, self-lubricating follower for increased reliability. Not compatible with SA80 and HK416″ or similar, platforms.