Kastle Group 2.26 in Aimpoint ACRO Mount Flat Dark Earth. 26 in optical centerline height which promotes a heads-up posture for faster target acquisition. This mount is designed for use with the Aimpoint ACRO series and similar optics that utilize that same footprint. The ACRO-226 features our titanium KastleClamp mounting technology and comes FORTRESS accessory ready out of the box. Specifications for Kastle Group 2.26 in Aimpoint ACRO Mount: Manufacturer: Kastle Group Finish: Mil Spec Type III Hardcoat Anodized Fabric/Material: 7075-T651 Aluminum Red Dot Sights-Footprint: Aim Point Acro Package Contents: Kastle Group 2.26 in Aimpoint ACRO Mount Kastle Group ACRO-226-FDE: 2.26 in Aimpoint ACRO Mount Flat Dark Earth