If you are shooting benchrest or prefer using owl ear bags and want windage adjustability, get this rest. This model comes equipped with all the standard features of the Sinclair rest and a fully windage adjustable top (Model 5300) designed for benchrest competition. The top on this rest has smooth, steady windage adjustments (approximately 40 inch at 100 yards) with an easily accessible windage knob. The top is machined from stress relieved aluminum tool plate which enables us to obtain the tolerances needed for flawless performance. Tilting adjustable side plates allow you to squeeze the bag and cradle the rifle forend firmly. As adjustable forend stop is included. this style of top requires a Protektor style front owl ear bag.