This is a Krieghoff Factory Adjustable Butt Plate with Krieghoff Recoil Pad. Has a raw-oversized base plate that can be fitted to any stock. Comes with original Krieghoff 1″ recoil pad installed.Fully adjustable; up & down, left & right, cant & pitch. All adjustments can be done with 2.5 mm allen wrench that is used for the comb. The length of pull can be lengthened with 1/4″ spacers that are sold separately. Installation by a qualified gunsmith is required