Magpul RSA-QD Rail Sling Mount Attachment with MAG540 Black Push Button Quick-Detach Swivel Forward or rear attachment point for 1.25 inch Sling Sturdy Low Profile Unobtrusive design Magpul MAG540 Quick release swivel for 1.25 Inch Sling Mounts on standard Picatinny/weaver rails Great for hunting and carrying