The ultimate kit to replace the factory stock pistol grip and more. Providing better accuracy stability and comfort. - Replace factory buttstock with a pistol grip and Picatinny sight mount. - Available for Remington 870 and Mossberg 500/590 12 ga. - Remington grips include 6 interchangeable finger grooves and back straps - Fits: Remingto 870 12 ga - Number of Rails: 1 - Made of: Polymer - Weight: 8 oz - Length: 6.9� - Height: 8.375� - Width: 1.5�