American Defense Manufacturing AD-DELTA-C Cantilever Scope Mount Tactical Legacy Lever 20 MOA 30mm Ring Size Flat Dark Earth. The AD-DELTA-C is an offset scope mount with 2 inches of eye relief built in. Optic centerline height is 1.5" for 30mm rings. It is precision machined from 6061 T6 aluminum and finished in hard coat T3 Mil-Spec anodize. Horizontal rings. 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 AD-DELTA-C Cantilever Scope Mount: Manufacturer: American Defense Manufacturing Gun Rail: Picatinny Fabric/Material: 6061-T6 Aluminum Offset: 2 in Gun Make: AR Platform Weight: 9 oz Gun Model: AR-10 AR-15 Condition: New Finish: T3 Mil-Spec Anodize Gun Type: Rifle Features of American Defense Manufacturing AD-DELTA-C Cantilever Scope Mount 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. Precision machined from 6061 T6 Aluminum. Hard coat anodized for a lifetime of performance. Fully adjustable to fit both in spec and out of spec rail systems. Features the Patented QD Auto Lock Lever system. Package Contents: American Defense Manufacturing AD-DELTA-C Cantilever Scope Mount What firearm models does the manufacturer say American Defense Manufacturing AD-DELTA-C Cantilever Scope Mount is compatible with? The manufacturer says that American Defense Manufacturing AD-DELTA-C Cantilever Scope Mount is compatible with AR-15 AR-10American Defense Manufacturing AD-DELTA-C-20MOA-30-FDE-TAC: AD-DELTA-C Cantilever Scope Mount Tactical Legacy Lever 20 MOA 30mm Ring Size Flat Dark Earth