USED American Defense Manufacturing QD Base For Swivel Model Harris Bipods Black AD-BP-P2-STD. Not compatible with the Tac Lever (Lever interferes with the bipod itself). 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) Titanium Lever system to accommodate both in-spec and out-of-spec rail systems. Specifications for American Defense Manufacturing QD Base For Swivel Model Harris Bipods: Manufacturer: American Defense Manufacturing Color: Black Finish: Anodized Fabric/Material: 6061-T6 Aluminum Features of American Defense Manufacturing QD Base For Swivel Model Harris Bipods 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 QD Base For Swivel Model Harris Bipods American Defense Manufacturing AD-BP-P2-STD: QD Base For Swivel Model Harris Bipods Black