an adjustable sling system provides a quick release fitting which enables a sling system to transition from a close to the body quick fire position to an away from the body aiming position . the adjustable sling system incorporates a first end having a first attachment fitting carried closer to the forward grip of a rifle having a first portion of the first end attached to an extended rubber core web surrounded section . a release clip has a first end supported by a tension ring which is supported along a length of webbing extending from the first portion , and includes a riveted connection to the web strap and reinforcement plate as it extends from the first end . the slope in the direction of capture is calculated with respect to the force of the spring action to insure that the close body position is maintained absent a deliberate forward aiming motion . a second adjustable sling system for use with military full back pack or load bearing equipment such as a load bearing vest enables a slide fitting on a rifle sling to be used with a “ y ” shaped support which connects to a backpack . rifle attached fittings are disclosed which permit rifles to be supported in the vertical position with either of the first or second adjustable sling systems .