The ProMag DRM-A98 50-Round Drum Magazine offers exceptional durability and reliability, perfectly crafted for the Ruger Security-9 9MM Pistol. This magazine exemplifies high-quality American manufacturing standards. Engineered for performance, the ProMag ensures seamless feeding and operation. Its proprietary Dupont Zytel-based polymer construction guarantees longevity, while precision-molded components provide consistent function and reliability. 50-Round Drum Magazine Fits Ruger Security-9 9MM Pistol Magazine Body Constructed of a Proprietary Dupont Zytel Based Polymer Blue Steel Upper Magazine Tower Injection Molded Magazine Follower Magazine Spring Formed From Heat Treated Stainless Steel Made in the U.S.A. Trust the ProMag DRM-A98 for unmatched reliability and high-capacity performance.