Sling swivels 1" for Rifles and Shotgun slings. Lockable Sling Swivels Fits most standard sling stud on rifles and shotguns. Lockable Sling Swivels Virtually Indestructible Metal Construction. Length: 1.25" Width: 1.6" Outside Width, 1.3" Inside Loop. Fits most standard sling stud on shotguns and rifles. Black Finish. Come 2 per pack.