The Magpul MBUS Pro Offset Rear Sight is designed to supplement the aiming of magnified optics on Picatinny mounting surfaces. This MBUS rear sight deploys at standard AR height over bore at a 45-degree offset to provide a quick iron sighting solution if the primary optic becomes nonfunctional. All-steel construction on this offset rear sight adds durability while a Melonite QPQ finish protects against wear and corrosion. A low-profile knob offers quick, tool-free adjustment for windage to ensure accuracy in a variety of conditions. With easy zeroing and dual rear apertures, the Magpul MBUS Pro Offset Rear Sight makes a great addition to the sight system on your favorite tactical rifle.Features:Specs:Note: