The ProMag Ruger SR 40 S&W 15rd Steel Magazine is a reliable and durable replacement or spare magazine designed specifically for your Ruger SR. Crafted from heat-treated steel it ensures long-lasting performance and durability. The injection-molded magazine follower and chrome silicone wire spring provide smooth and consistent feeding for optimal functionality. With a 15-round capacity and an oxide finish this detachable magazine combines practicality with a sleek design. Proudly made in the USA it offers a perfect fit for Ruger SR models making it an excellent choice for firearm enthusiasts seeking quality and performance.