Magpul MS3 Single QD Sling Gen 2 - Quick Change 1 or 2 Point Sling -Filling the same mission requirement as the standard MS3 Sling, the MS3 Single QD can quickly switch between one-point and two-point configuration. The MS3 Single QD maintains material construction and specifications identical to that of the standard MS3, but features a heavy-duty push-button QD sling swivel for the one-point (rear) weapon attachment rather than the Magpul Paraclip..