Universal fit for ventilated rib shotguns. Includes two and full windage and elevation adjustment. Rifle-style elevated sights for the serious turkey and deer hunter Universal fit for ventilated rib shotguns Integrated level for consistent alignment with gravity Includes two interchangeable rear sights All-metal construction Full windage and elevation adjustment Front diameter is .060"; rear diameter is .029" New and improved mount design for increased compatibility Endorsed by the National Wild Turkey Federation Resistant Nitrogen Fog Proof