Sling hardware expands the mounting options of your Vickers Sling or other weapon sling and allows the attachment to any weapon system in existence. With the wide variety of rifles, shotguns, sub machine guns, and heavy weapons in use with law enforcement, military units, and in enthusiast safes – sling hardware such as QD swivels, ULoops™, UWLs™, clips, adapters, and other parts connect slings to these various weapon models.