Strike Industries PolyFlex Slide Back Plate for M&P Black One Size. For when you want to clean and maintain your firearm or need to perform a field strip in a crunch this M&P SBP is a simple to use and affordable upgrade. PolyFlex polymer offers an exceptionally resilient material that has a high heat capacity as well as strong tensile strength while maintaining it's lightweight characteristics. Specifications for Strike Industries PolyFlex Slide Back Plate: Manufacturer: Strike Industries Color: Black Fabric/Material: Polymer Gun Model: Smith & Wesson M&P 45 Smith & Wesson M&P 357 Smith & Wesson M&P 40 Gun Make: Smith & Wesson Features of Strike Industries PolyFlex Slide Back Plate Toolless design for disassembly of SBP Easy to use Onepiece polymer construction Made of durable and lightweight polymer Inexpensive upgrade Package Contents: Strike Industries PolyFlex Slide Back Plate x1 PolyFlex Slide Back plate What firearm models does the manufacturer say Strike Industries PolyFlex Slide Back Plate is compatible with? The manufacturer suggests that Strike Industries PolyFlex Slide Back Plate is compatible with Smith & Wesson M&P 40 Smith & Wesson M&P 357 Smith & Wesson M&P 45Strike Industries SI-POLYFLEX-M&PSP: PolyFlex Slide Back Plate for M&P Black One Size