Ultimate Arms Gear 1.25" QD Quick Detach Slot Loop Swivel Attach Locks Stud Adapter for Remington 870/1187/11-87 12/20 Gauge 1 Peice Steel 1.25" (1-1/4-Inch) Designed for Slings 1.25" Wide. Super Heavy-Duty Swivel, Will Hold Up To Years Of Heavy Outdoor Use. Quick and Easy Installation. All Steel Construction, Black Finish.