This is a Magpul Industries Swivel known as the QDM, model MAG543.
The Magpul QDM is a heavy-duty upgrade to standard push-button quick detach sling swivels. The innovative design allows for a lower profile sling swivel that offers one-handed manipulation" a high strength bale that rotates freely and canalizes sling webbing to prevent rollover" and superior resistance to corrosion with a Melonite finish. Made in U.S.A.
Features:
Custom quick-disconnect sling swivel for 1-1/4 webbing;Optimized bale shape prevents sling rollover;Fits all standard sized QD cups
