Tiger Rock Push-Button Quick Detach Sling Swivel Black. It's made of solid steel accepts sling straps up to 1.25" wide and fits standard 0.365" QD ports. Specifications for Tiger Rock Push-Button Quick-Detach Sling Swivel: Manufacturer: Tiger Rock Color: Black Included Accessories: Standard Fabric/Material: High Quality Steel Gun Type: Universal Gun Model: Universal Size: Standard Finish: Matte Features of Tiger Rock Push-Button Quick-Detach Sling Swivel: Push-button release; Accepts up to 1.25" wide slings; Fits: Standard QD port Package Contents: Tiger Rock Push-Button Quick-Detach Sling Swivel Tiger Rock QD: Push-Button Quick Detach Sling Swivel Black