The Blue Force Gear Vickers 221 Sling allows the user to switch from 2-point to 1-point mode instantly by pulling on the Rapid Emergency Detachment Swivel (RED Swivel) knob and reinserting it in to the Burnsed Socket at the rear of the receiver. The instantaneous adjustability of the sling is still maintained in both single and 2 point modes. A standard push button swivel and new molded Burnsed Socket are woven onto the rear allowing full adjustability of the sling for use with or without body armor. The 221 Sling fits any weapon with two QD sling swivel sockets. For SCARS, Sigs, HKs, or other weapon systems with eyelets at the rear of the receiver, a Universal Wire Loop with Push Button Socket can be added instead of the included push button socket.