This Volquartsen Picatinny Scope Mount is designed to fit the Ruger MKI, MKII, MKIII and 22/45 pistols. The mount is designed to be a no gunsmithing mount for those receivers that are drilled & tapped from the factory. It is CNC machined from aluminum alloy to mil-spec Picatinny tolerances. The rear sight does not need to be removed to install this mount. Includes three mounting screws.
Fits: Ruger MKI, MKII, MKIII and 22/45