The ProMag SD 9mm 17rd Steel Magazine is a reliable and durable accessory designed specifically for your S&W SD series firearm. Crafted in the USA this magazine is constructed from heat-treated steel ensuring long-lasting performance and resilience. Its injection-molded magazine follower and chrome silicone wire spring provide smooth feeding and dependability. With a sleek oxide finish and a 17-round capacity this detachable magazine is a perfect combination of functionality and precision engineering.