The AD-68H High Profile Aimpoint mount features a lower 1⁄3rd co-witness when used on an AR15, M16, M4 flat top with Mil-Spec size iron sights. It is precision machined from 6061 T6 aluminum and finished in hard coat T3 Mil-Spec anodize. It features the patent pending Auto Lock™ Lever system to accommodate both in spec and out of spec rail systems.