PROMAG MAG SW SHIELD 40SW 9RD BLUED STEEL

Description

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 ourproprietary TECHNAPOLYMER® and our anti-fatigue spring so you can keep the magazineloaded and ready for up to six years without concern.