Featuring a proprietary single-to-double-stack design, the Smith & Wesson® M&P® Shield™ Plus / Equalizer™ 9mm 13-Round Magazine offers maximized capacity, without sacrificing concealment. The precision-machined steel body comes equipped with an extended polymer floor plate with a pinky extension for improved comfort and control. The high-tensile steel spring and polymer follower ensure smooth, reliable feeding, while numbered witness holes allow quick, visual round counts. Plus, the extended floor plate integrates seamlessly with the pistol’s frame for snag-free carry. Further, this factory magazine is also compatible with the all-new Smith & Wesson Equalizer 9mm pistol. Pick up an extra M&P Shield Plus magazine or two and enjoy superior cost savings without sacrificing reliability. Order now! Made in USA.