<p>Magpul&reg; designs their AR accessories to deliver optimum performance in demanding, high-stress tactical shooting environments. Their MS1&reg; MS4&reg; QD Rifle Sling Adapter together with the QD Sling Swivel (MAG540) provides fast transition between 2-point to 1-point configuration. One point attachment makes the weapon easy to maneuver, especially inside a vehicle, and quick to switch from dominant to support shoulders. An ambidextrous QD shackle provides quick-release capabilities of the weapon in an emergency. The Magpul MS1 MS4 QD Rifle Sling Adapter is constructed of tough 1-1/4&quot; nylon webbing, with Melonite and manganese phosphate finished steel. The QD attachment is compatible with receivers, end plates, and buttstocks that have a push-button QD sockets.<br /> Manufacturer model #: MAG519.</p> <ul> <li>Converts MS1 rifle sling from 2-point to 1-point configuration</li> <li>Compatible with push-button QD sockets</li> <li>Melonite finished steel</li> <li>1-1/4&quot; nylon webbing</li> </ul>