FULL SIZE IS compatible with Smith & Wesson M&P M2.0 Full Size and M&P Standard Full Size, M&P Compact, & M&P Subcompact. Calibers include 9mm, 10mm, 40 S&W, 45 AUTO.   **FULL SIZE is NOT compatible with SHIELD Subcompact models, OR M&P 5.7 Series. SHIELD IS compatible with S&W Shield Models. **Milspin S&W Back Plates are NOT compatible with S&W "Performance Center" Models of any kind. Laser engraved with our state-of-the-art laser engraving machine, the Large Scale US Flag backplate is a premium upgrade to the Smith & Wesson lineup. Our intricate 3D engravings are the brilliant culmination of the exceptional talents of our nasty design team - who would put Monet and van Gogh to shame - and our engineering team.  These slide back plates for Smith & Wesson are of the highest detail that Milspin has yet achieved in our factory.  Material: Solid Brass EASY INSTALLATION 100% No Questions Asked Return Policy on All Products