This Super Slim Picatinny Riser Base features a matte black anodized aluminum construction. It measures 5.50 in length, 1.10 in width, and weighs 3 oz. Engineered with a Picatinny / Weaver mount type and rail interface, it features a 1 mount height to elevate your optics for optimal sight lines. 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.