SKU: ZMSMI31
UPC: 708279012082
MPN: SMI 31
PROMAG SMI 31 a 9-round magazine for the Smith & Wesson Shield in .40 caliber. Constructed from heat-treated blued-steel components molded from ProMag rproprietary 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.
WARNING ⚠️
You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
Purchasing a Firearm? Click HERE to see our firearm purchasing guide.
Promag Mfg. Inc.
