The Graco Gracoil Length of Pull Stock Plate offers the same features as the standard GraCoil, but with the added feature: the "length of pull" adjustment, which allows for the stock length adjustment up to 1". The GraCoil adds 1" to the stock length, and requires the stock to be shortened in most cases. Its construction is all aluminum and stainless steel and comes complete with screw and wrenches. It uses very little lubrication, and no maintenance is required.