The LimbSaver Classic Precision-Fit Recoil Pad is engineered specifically for Mossberg shotguns reducing felt recoil by up to 70 percent using proprietary NAVCOM technology for superior noise and vibration control.LimbSaver Classic Precision-Fit Recoil PadCompatible with Mossberg 500/835/930 (excluding 930 SPX)Reduces felt recoil by up to 70 percentNAVCOM technology absorbs wide range of frequenciesIncorporates muzzle jump technology for faster target re-acquisitionEasy installation processHelps increase accuracy of follow-up shotsDesigned for shooters who want to shoot longer without discomfort and bruising while maintaining maximum stability and control for improved shooting performance.