Recoil-absorbing pad of NAVCOM(TM) synthetic material combines the proven effectiveness of the original Limbsaver with improved shouldering speed and Anti-Muzzle Jump Technology for fast, accurate follow up shots. Beveled heel eliminates the prominent edge that can catch on clothing and slow down shouldering your shotgun. Wear-resistant Easy Glide surface coating further reduces friction between pad and clothing. As the firearm discharges, the redesigned two-chamber system inside the pad engages, with the lower chamber compressing first to direct the recoil force downward. Two, internal impact pillars engage to distribute the force and further control the angle of collapse, reducing mu Mfg: Limbsaver SPECS: NAVCOM(TM) synthetic material, black, with black plastic base. Ribbed face. Screw-on replacements require no fitting for guns with factory recoil pad. Grind-To-Fit - 5.085" x 1.815, grinds to approximately 4-1/4" x 1-5/16. 3.125" center-to-center hole spacing.