The PMAG™ (Polymer MAGazine) is a lightweight 5.56 NATO, M-16 compatible magazine. It features a pop-off storage/dust cover that alleviates pressure from the magazine feed lips, allowing for long-term storage of loaded magazines without risk of feed lip creep that often causes malfunction in standard aluminum magazines. PMAG™ utilizes a resilient stainless steel spring for corrosion resistance. The MagLevel™ PMAG™ features transparent windows and a painted spring for quick determination of approximate round count. Features * Constant-curve internal geometry for smooth feeding * Anti-tilt follower for increased reliability * Storage/dust cover * Stainless steel spring for corrosion resistance * Textured gripping surface