Borrowed from an European design used on double guns, I found this design to be very adaptable to muzzleloaders or any rifle /shotgun with out swivels. Easily slip front loop over end of barrel then open cinch loop at other end and slip over butt stock. Cinch loop tight around wrist and your good to go. Adjusts to any size by sliding up and down barrel. Long Guns can be carried muzzle up or down (I prefer muzzle down) and if sights are at least 3/8" high you can still sight through them with sling attached. Short rifles are best carried muzzle down (see pictures) . Webbing is made of natural jute and brown cotton.