Made in the USA, 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. This modification allows compatibility with QD sling cups commonly found on lower receivers, receiver end plates, and buttstocks. The sling mounting rear works with receivers, end plates, and buttstocks that have a QD socket for one-point attachment. The sling mounting front is compatible with the Magpul RSA, MSA, and Forward Sling Mount, as well as many snap-hook style sling loops and standard or QD sling swivels for use in two-point mode. * Snap-hook style sling loops with an inner diameter of at least 3/8" are required, but 9/16" and larger will provide full range of motion of the Paraclip.