Slip-on: Small/Medium Stocks - 4-5/8"x 19/16" to 5-1/8" x 1-3/4" (1/2" Thick Length of Pull) Easy-to-install recoil pad helps reduce up to 70 percent of felt recoil, increase stability for improved control Atmospheric chambers produce a substantial increase in performance through uniform energy dissipation Made from LimbSaver's proprietary vibration-dampening NAVCOM material; non-slip surface for use in all harsh weather conditions Incorporates anti-muzzle jump technology for faster target re-acquisition