Primary Arms Classic Absolute Cowitness Mount - 30mm Black. When looking down the iron sights the red dot will be placed in the middle of the red dots scope tube. The light weight design constructed of anodized aluminum is easy to install. This tough mount features a lifetime warranty. Specifications for Primary Arms Classic 30mm Absolute Cowitness Mount: Manufacturer: Primary Arms Color: Black Finish: Anodized Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Fabric/Material: Aluminum Tube Diameter: 30 mm Co-Witness: Absolute Red Dot Sights-Footprint: Not Applicable Optic Cut: Not Applicable Condition: New Package Contents: Primary Arms Classic 30mm Absolute Cowitness Mount Primary Arms Classic Absolute Cowitness Mount - 30mm Black PAAC30