The Vsling™ Crossbow/Gun Edition is made from the same 100% elastic material that made the original Vsling™ famous — now tuned for crossbow and firearm carry. Each sling ships with two loose key rings so you can install it exactly how you like. Slide each key ring through the swivel studs, loop the sling through itself on the ring nearest the butt, run it forward through the front ring, then back to the butt and tie a snug double knot — let the elasticity do the work. Adjust until you reach your preferred tension — then re-snug it and you’re ready to go.