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. All others include studs or barrel bands, depending on type.
- Now has special adapter for Beretta 390 magazine cap; adapter also included for most pump and auto magazine caps; wood screw base for butt stock
- Does not fit Browning 2000, Winchester 1400, Ithaca 37, Savage 30, Sears 21 or Stevens pumps