American Defense Manufacturing ARCA To Picatinny Tripod Adapter Fits Tripod Heads w/ ARCA Swiss Anodized Finish Black. It is precision machined from 6061 T6 aluminum and finished in hard coat T3 Mil-Spec anodize. It features the Patented QD Auto Lock(tm) Lever system to accommodate both in-spec and out-of-spec rail systems. Specifications for American Defense Manufacturing ARCA To Picatinny Tripod Adapter Fits Tripod Heads w/ ARCA Swiss: Manufacturer: American Defense Manufacturing Color: Black Finish: Anodized Fabric/Material: 6061-T6 Aluminum Gun Rail: Picatinny Gun Type: Rifle Condition: New Handle Color: Black Handle Finish: Anodized Features of American Defense Manufacturing ARCA To Picatinny Tripod Adapter Fits Tripod Heads with ARCA Swiss Anodized Finish Black AD-ARCA-TP-TAC: Does not require proprietary tools for adjustment. Can be adjusted with your finger or a flat blade screwdriver. Lever can be configured to lock to the front or the rear. Superior clamping surface to insure maximum rail engagement. Package Contents: American Defense Manufacturing ARCA To Picatinny Tripod Adapter Fits Tripod Heads w/ ARCA Swiss