ProMag Drum Ruger P91 .40 S&W 50rd Handgun Magazine, Black Polymer - PM DRMA71

This ProMag drum magazine holds 50 rounds and is designed specifically for the Ruger P91 in .40 S&W caliber. The magazine features a proprietary DuPont Zytel-based polymer body with a blue steel upper tower, injection-molded follower, and heat-treated stainless steel spring, and is made in the USA.