This EOTech Magnifier Mount Base features a black hardcoat anodized 6061-T6 aluminum construction. Designed for MIL-STD-1913 Picatinny rails, it utilizes a Speed Lever Quick Detach mounting method and a spring-loaded pivot mechanism. Built with a 1.725 centerline height for Lower 1/3 Co-Witness alignment on AR15 platforms, it is specifically engineered for EOTech 3X magnifiers. Safety Note Always ensure the firearm is unloaded before installing or adjusting any optics or bases. Verify proper torque specifications during installation. Improper mounting may affect accuracy and safety.