Upgrade your concealed carry kit with the Smith & WessonA(R) M&P(TM) 9mm 15-Round Magazine from GunMag Warehouse. Featuring lightweight aluminum construction with a corrosion-resistant finish, this magazine is designed for long-lasting, reliable field performance. Plus, the numbered witness holes provide quick, easy round counts on the fly and the impact-resistant polymer baseplate adds a layer of shock resistance to the magazine. The heat-treated internal steel spring and polymer follower ensure smooth, reliable feeding in high-stress target environments. Engineered to Smith & Wesson's exacting quality standards, these factory magazines are a must if you want to get the most out of your M&P 9 pistol. Grab a few spares today for maximum firepower, and order today! Lightweight aluminum construction Corrosion-resistant finish Heat-treated steel wire spring Durable polymer follower Numbered witness holes Impact-resistant polymer baseplate