ProMag DRMA100 50rds Drum 9mm Fits Ruger Max-9 Black Polymer

The ProMag DRMA100 is a 50-round drum magazine designed for the Ruger Max-9 9mm pistol, featuring a durable black polymer body constructed from DuPont Zytel-based material with a blued steel upper magazine tower. It includes an injection-molded follower and heat-treated spring for reliable feeding, offering extended capacity for range use or tactical scenarios. Marketed as a high-capacity aftermarket option, it aims to reduce reload frequency while maintaining compatibility with the Ruger Max-9 platform.