The XS Lever Rail Ghost Ring WS upgrades the Marlin 1894 to allow for mounting of an optic in multiple positions and adds rugged all-steel back up iron sights. Fits Marlin 1894 with round barrel and existing front sight blade and ramp that is screwed onto the barrel. Does not fit on 1894 with octagon barrel. Lightweight, anodized aluminum rail is machined to Picatinny specs and allows scope mounting directly over the receiver, or forward for scout scopes or red dot sights. XS Ghost Ring WS is fully adjustable for windage and elevation and comes with two apertures, .230" and .191" inside diameter, for different lighting conditions.