Lighter and slimmer-the Vickers ONE Sling. The Vickers ONE Sling offers all the features of the Vickers Combat Application Sling in a slimmer, minimalist design, creating a lighter and more versatile sling. For those with a lightweight rifle build or pistol caliber carbines, this sling is for you. The Vickers ONE Sling utilizes 1″ webbing and custom designed hardware to create a sling that functions as a Vickers Sling, but at 23% less weight than the Vickers Sling.