Click to Enlarge QD Metal Sling Swivel 20mm RIS/RAS Weaver Rail AEG Gun Features & Description: Steel Metal Sling Mount for all 20mm Rails Best fit on RIS/RAS Rail Integrated System equipped rifle Both Left & Right Handed compatible A convenient way to install sling onto your rifle Easy Hook Up, Install in just seconds Install on all 20mm Weaver Rail, Scope Rail & RIS/RAS Rails Perfect for Hunting & Skirmish Play Specifications: Weight: 34g Sling swivel width: 40mm Adapter Size: 20mm RIS/RAS Rail Characteristic: QD Design Built Material: Steel Color: Black Matte   Package contains: QD Metal Sling Swivel 20mm RIS/RAS Weaver Rail AEG Gun