Blue Force Gear - Vickers Push Button SlingThe Vickers Push Button Sling The Vickers Push Button Sling starts with Vickers Combat Applications Slings trusted by over 500,000 Marines, Soldiers, and Airmen the tactical sling can instantly lengthen or shorten by the patented Quick Adjuster. This allows the user to have the weapon secure in a hands free carry and quickly lengthen the sling into a shooting position with no moving parts, clips, springs, or other awkward parts. The Quick Adjuster