Pachmayr Decelerator Magnum Slip On Recoil Pad, Medium, Black Decelerator recoil control and patented Speed-Mount insert. Pad's material and design make installation easy. Design delivers smooth, snag-free mounting and maximum recoil reduction. Pad Size Fits Stocks Medium 1.5 inches to 1.75 inches wide x 5 inches to 5.19 inches long. Fits: - Beretta: 391 Synthetic - Benelli: Super Black Eagle, Super Black Eagle II, Nova, M1, Montefeltro (All above field models only) - Browning: BAR, Citori - Mossberg: 500 Synthetic (Post-99), 835, 935br - Remington: 870 Synthetic (Post-99), 1187 Synthetic (Post-99), 700 ADL/BDL (Larger stock sizes), Model 7br - Ruger: No.1, M77 (Post-2001) , 77 All Weather Synthetic (Post-2001), Red Label 12 and 20 Gauges - Savage: 110 Synthetic Stocks - Thompson Center: Encore, Omega Muzzleloader, Black Diamond - Winchester: 1400/1500 Semi-Auto, Super X1, Model 70 Black Shadow/Classic Stainless (Pre-99)