ProMag magazines are made in the USA and backed by a lifetime guarantee against manufacturers 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.Features :17-Round MagazineFits Springfield Armory Hellcat 9MM PistolsMagazine Body Constructed of Heat Treated Steel with Black Oxide FinishInjection Molded Magazine FollowerMagazine Spring Formed From Heat Treated Chrome Silicone WireMade in the U.S.A.