Description
ProMag magazines are made in the USA and backed by a lifetime guarantee against manufacturer’s defects. Magazine springs are precision wound using heat-treated chrome silicon wire and each and every step of the assembly process is checked and double checked in order to maintain the same consistent level of quality.
50-Round Drum Magazine “Fits Sig Sauer P320 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.”