The TRUGLO crossbow Red-Dot sights have click windage and elevation adjustments. Adjustable rheostat for brightness control. Integrated Weaver-style mounting system. See-thru / flip-up lens caps, optical-quality / all-weather. Integrated lanyard system to prevent loss of screw-down W/E caps. Includes all the award-winning features of our Traditional Red•Dot Sight Series. Lifetime Limited Warranty.