UUQ&reg; Clarity+ Mini Holographic Reflex Red Dot Sight in Dual Brightness for 20mm Weaver Rail Mount Lightweight and compact, great for handguns. Windage and elevation adjustable (tools included). This tubeless-design reflex lens aperture provides a wide field of view which is very suiteble for rapid firing or shooting of moving targets. This reflex sight has THREE brightness settings adjustable. Switch for 1) off 2) low brightness 3) high brightness. Made by durable Aircraft Aluminum Alloy and finish through trustable manufacture platform. Well Packaged with sight, battery,manual, clean cloth and allen keys.