NcDe QD Sling Mount and Quick Detach Push Button Swivel Set, Picatinny/Weaver Mount, QD Sling Attachment Standard Alloy QD loop with a Picatinny mount Stayed nice and secure on the Picatinny rail or Weaver Mounting Push button loop release is sturdy, fast and carry it safely. Swivel inserts and releases with ease,and endless amount of mounting flexibility, can positioned to achieve the best location for your sling. 100% Lifetime Guarantee