American Defense Manufacturing Holosun AEMS Titanium Lever Red Dot 1/3 RD COWITNESS Mount Black. Available in absolute co-witness lower 1/3 co-witness 1.93" and 2.33" NV heights. The Holosun AEMS Low Mount is precision machined from 6061 T6 aluminum and finished in hard coat T3 Mil-Spec anodize and 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 Holosun AEMS Red Dot Mount: Manufacturer: American Defense Manufacturing Color: Black Finish: Anodized Gun Type: Rifle Fabric/Material: 6061-T6 Aluminum Base/Mount Type: QD Mount Red Dot Sights-Footprint: Not Applicable Optic Cut: Holosun Hand: Ambidextrous Length: 2 in Width: 1.4 in Features of American Defense Manufacturing Holosun AEMS Standart Lever Red Dot 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. Package Contents: American Defense Manufacturing Holosun AEMS Standart Lever Red Dot Mount American Defense Manufacturing AD-AEMS-11-TL: Holosun AEMS Titanium Lever Red Dot 1/3 RD COWITNESS Mount Black