This Micro-Lower 1/3 Co-Witness QD Base features an anodized black aluminum construction with a 1.31 height and weighs 4 oz. Designed with a quick detach mount type, it is engineered for compatibility with Aimpoint Micro T-1, T-2, H-1, and H-2 optics. Includes all necessary mounting hardware for complete setup. 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.