Uncle Mike s QD 22 Tube Magazine Super Swivels Blued 1-Inch Loop - 1071-2. The unique quick detachable (QD) design stops the metal swivel body from contacting the gun. The close Machining tolerances provide smooth and silent operation. Super swivels do not include studs. Magnum band fits tube magazines 420 to 470 inch diameter without dismantling gun. Magnum Band fits tube magazines .420 to .470 diameter without dismantling gun. Swivel Lock spring-loaded plunger and a knurled threaded sleeve eliminates accidental opening of the swivel. Closed Link technology creates a permanent ring bond.