Swampfox JTC00127-3: Justice is the all-new open reflex red dot sight intended for everyday carry and competition on pistols, carbines, and shotguns. Made from tough 7075 aluminum and packed with advanced features that make everyday use worry-free. Greatly improved battery life, Shake \'N Wake motion-sensing illumination, scratch-resistant hard coat finish, and fully multicoated with anti-fog, anti-scratch, and hydrophobic coatings, resulting in great daylight bright performance. Constructed from 7075 aluminum and features a stainless steel top-mounted battery cover accessed via T10 Torx wrench, there is no need to re-zero when swapping batteries. The Justice has a 27mm window that gives great visibility and allows for rapid target acquisition.