ProMag Polymer Pistol Magazine Ruger P91 .40 S&W 50-Round Black 50RD

ProMag Polymer Pistol Magazine Ruger P91 .40 S&W 50-Round Black 50RD. The follower is injection molded and the magazine spring formed from heat treated chrome silicon wire. Specifications for ProMag Polymer Ruger P91 .40 S&W 50-Round Pistol Magazine: Manufacturer: ProMag Gun Model: Ruger P91 Caliber: .40 S&W Magazine Capacity: 50 Round Package Contents: ProMag Polymer Ruger P91 .40 S&W 50-Round Pistol Magazine What firearm models does the manufacturer say ProMag Polymer Ruger P91 .40 S&W 50-Round Pistol Magazine is compatible with? The manufacturer suggests that ProMag Polymer Ruger P91 .40 S&W 50-Round Pistol Magazine is compatible with Ruger P91ProMag DRM-A71-50RD: Polymer Pistol Magazine Ruger P91 .40 S&W 50-Round Black