American Defense Manufacturing QD Swivel MOD 3 Offset Rail Mount Black Small. We designed the mount to fit perfectly flush with the Tango Down rail panels to provide an uninterrupted rail space. The socket was designed and machined to prevent rotation which in turn prevents your sling from becoming twisted. It offsets the quick detach swivel 45 degrees allowing the weapon to hang more naturally when slung across the chest in a ready position. It comes complete with all mounting hardware screws hex keys and Vibra-Tite to make installation fast and easy. Does Not Include QD Sling Swivel Specifications for American Defense Manufacturing QD Swivel MOD 3 Offset Rail Mount: Manufacturer: American Defense Manufacturing Color: Black Fabric/Material: 6061-T6 Aluminum Condition: New Flashlight Application: Hunting Flashlight Model: Surefire X-Series Finish: Military Specification MIL-A-8625F Type III Class II Hard Coat Features of American Defense Manufacturing QD Swivel MOD 3 Offset Rail Mount A 30percent reduction in weight An 1144 StressProof heat treated full width steel index as well as the ability to index your swivel in 8 different clock positions Is constructed using multiple base materials and is precision CNC machined from billet stock. Base Material: 6061-T6 Aluminum Base Finish: Military Specification ( MIL-A-8625F ) Type III Class II Hard Coat Index Material: 1144 StressProof heat treated steel Index Finish: Nitrocarburising by Nitrotec Weight: 1.60 ozs Compliance: 100percent Berry Amendment Compliant Package Contents: American Defense Manufacturing QD Swivel MOD 3 Offset Rail Mount Gear Sector Rail Mount Offset QD Swivel 9/64th hex key for securing mount to rail system Vibra-Tite VC3 thread locking compound. American Defense Manufacturing GS-3140: Surefire X-Series Offset Flashlight Mount Black Small