The unique quick detachable design of the Uncle Mikes Quick Detach Swivels Ruger 1" blued stops the metal swivel body from contacting the gun. The close machining tolerances provide smooth and silent operation. Super Swivels do not include studs. All others include studs or barrel bands, depending on type. It features a fore end adapter with stud that installs in the barrel band of the gun. It includes 1 forend adapter with stud, one 0.5 inch wood screw for optional fore end stud mounting, 1 wood screw rear stud, and 2 quick detach swivels for 1 inch slings. These swivels fit Ruger 10/22, 44 Mag, and number 3 carbines.