ProMag Polymer Pistol Magazine Sig Sauer P320 9mm 50-Round Black DRM-A55-50RD. The follower is injection molded and the magazine spring formed from heat treated chrome silicon wire. Specifications for ProMag Polymer Sig Sauer P320 9mm 50-Round...
ProMag Polymer Pistol Magazine Sig Sauer P320 9mm 50-Round Black DRM-A55-50RD. The follower is injection molded and the magazine spring formed from heat treated chrome silicon wire. Specifications for ProMag Polymer Sig Sauer P320 9mm 50-Round...