Product Features Fits the Smith & Wesson 9mm Shield (does not fit the S&W Shield EZ). Extended 12-round capacity Compatible with most floor plates that fit Glock magazine Easy disassembly with our specially designed base plate Ergonomically designed floor plate makes it easy to grab from mag pouches Lifetime Warranty Product Specifications Manufacturer: ETS Model: Smith & Wesson M&P Shield Caliber: 9mm Magazine Capacity: 12