Ultimate Arms Gear Recoil Reduction Absorbing Screw In Rifle Shotgun Butt Pad Buttpad For Standard AR M4 Type Stocks, Black Great For Rifles And Shotguns That Are Equipped With Standard 6 Position Collapsible Stocks .75" Extension : Absorbs Recoil And Increases Length Of Pull New Gen. Design - Non Slip Molded Tractile Shock Absorbing Rubber (only 3.7 oz!) Instructions Included : Installation Requires Using The Included Template Or Butt Pad Itself To Mark Required Holes And Drilling 3 Holes Into The Stock Made In The U.S.A. - Ultimate Arms Gear Lifetime Warranty Included