QD Rotation Limited Sling MOUNT-N-SLOT by Impact Weapons Components DIRECT attach design eliminates the need for 2 separate mounts; 1- A Quick Detach Sling Mount and 2 - A Picatinny MIL-Spec 1913 Bolt-on Rail Section. Accepts any Heavy Duty or Standard push button Quick Detach Sling Swivel that connects to any sling and sling system