Product DetailsThe PMAG 30 AR/M4 GEN M2 MOE Window is a 30-round 5.56x45 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.In addition, durable dual-side transparent windows allow for quick determination of approximate number of rounds remaining in the magazine. Utilizing a high visibility indicator coil on the spring and numerical markers on the magazine body, the MagLevel(TM) system provides positive verification without affecting the durability or reliability of the magazine.Magpul Original Equipment (MOE) is a line of firearm accessories designed to provide a high-quality, economical alternative to standard weapon parts. The MOE line distinguishes itself with a simplified feature set, but maintains Magpul engineering and material quality. The GEN M2 MOE is identical in form and function to the older model PMAG except that the optional Impact/Dust Cover is now sold separately.Made in U.S.A.FEATURES Optimized for use with Colt-spec AR15/M4 firearms Impact and crush resistant polymer construction Constant-curve internal geometry for smooth feeding Anti-tilt, self-lubricating follower for increased reliability Long life USGI-spec stainless steel spring, black-oxide coated (MIL-DTL-13924D) Transparent MagLevel windows on both sides of the body along with a painted indicator on the spring allows for easy determination of rounds remaining from 1 to 30 Textured gripping surface and flared floorplate for positive magazine handling and easy disassemblyNOTE: Not compatible with SA80 and HK416, or similar, platforms.