The Magpul QDM is a Melonited, heavy duty upgrade to standard quick detach sling swivels. The innovative design allows for a lower profile sling swivel that offers one-handed manipulation, an optimized bale that rotates freely and canalizes rifle slings to prevent rollover, and superior resistance to corrosion. 2-point engagement prevents accidental release. Optimized bale for sling management Fits all standard sized QD cups Designed to work with 1 1/4" slings Superior corrosion resistance Made in the USA Mfg: Magpul