Ultimate Arms Gear 1.25" QD Quick Detach Slot Loop Swivel Attach Locks Stud Adapter for ATI German Sports Gun GSG5 GSG-5 Rifle 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.