Designed for use with the Krux Frame, Xcurve Frame, R3 Frame, and Terminus bags to support the weight of your rifle, the Quick Release Sling secures your rifle to the pack while still offering easy and fast access without taking the pack off. A unique design of quick release buckles and webbing keeps the rifle barrel profile behind you, out of your field of view, and protected from the brush. One pull on the upper strap tether and your rifle is free for rapid access. The Quick Release Sling allows you to carry your weapon on either side of the Krux Frame, Xcurve Frame, and Terminus bags. It integrates with the right side of the R3 Frame. Not compatible with the Avail 2200.