Daniel Defense’s Rail Mount QD Swivel Attachment Point allows the operator to mount the popular Heavy Duty Push Button Quick Detach Sling Swivel. This allows the user to attach the swivel at any point along the rail section, and limited rotation design prevents the sling from becoming tangled. The Rail Mount QD Swivel Attachment utilizes Daniel Defense’s patented “Rock and Lock” one piece mounting system for a more robust and streamlined attachment point as well as simplified installation on any MIL-STD-1913 picatinny rail. This mount includes a Heavy Duty Push Button Quick Detach (QD) Sling Swivel which accepts sling straps up to 1.25". Daniel Defense Rock & Lock Rail Mount QD Swivel Attachment Point w/Heavy-Duty QD Sling Swivel 03-021-30029