The Strike Industries EMP Enhanced Magazine Plate is an extended magazine plate made for full sized M&P pistols. It adds magazine capacity by +6 to 9mm rounds or +5 to .40 caliber rounds. It was designed to provide smoother and faster magazine reloading. Steel locking plate and set screw is included to secure the magazine in place to prevent it from sliding out. The EMP Enhanced Magazine Plate had a aesthetically pleasing design and matched the look of the M&P stock grip. Includes1 M&P 9/40 EMP1 Steel Locking Plate1 Magazine Spring1 M4 Set ScrewFeaturesDurable polymer construction with steel locking plateEMP matches the look of the M&P stock grip for aesthetic appealDesigned for easy gripping for smoother and faster reloadsMagazine extension +6 rounds for .9mmMagazine extension +5 rounds for .40cal