Description

SMITH & WESSON SHIELD .40 S&W (9) RD BLUE STEEL SMI31 SMI 31 – Introducing the new PROMAG SMI 31, a 9-round magazine for the Smith & Wesson Shield in .40 caliber. Constructed from heat-treated blued-steel, components molded from a proprietary TECHNAPOLYMER and anti-fatigue spring, so you can keep the magazine loaded and ready for up to six years without concern. Our magazines are made in Phoenix, Arizona and come with a lifetime warranty.

NEW ITEM!!