Compatible with Ruger LCP Max Factory .380 Cal 10 round mags ONLY Does not fit the 12 round Replaces the floor plate adding 3/4 inch in grip length and retains all other factory components The grip extension does not alter capacity Made to work with the factory Ruger 10 round mags Designed to provide better comfort and control by adding approximately 3/4 inch of gripping surface The extension will only fit the LCP MAX in .380 cal These units blend with the contours and texture of the handgun giving a factory appearance They are made from High Impact Polymer and withstand drop tests at temperatures from -20 F to 250 F. Please note: Includes 1 microfiber cloth per order, regardless of quantity purchased. Microfiber cloth may be tan, gray, or black.