PROMAG S & W SHIELD .40 S&W 7RD BLUE STEEL MAGAZINE

ProMag SMI 30 – a 7-round magazine for the Smith & Wesson Shield in .40 caliber. Constructed from heat-treated blued-steel components molded from ProMag proprietary TECHNAPOLYMER and their anti-fatigue spring so you can keep the magazine loaded and ready for up to six years without concern. ProMag magazines are made in Phoenix Arizona and come with a lifetime warranty.