The Prism red dot sight features an etched reticle for increased clarity with or without illumination. It also has an extremely wide field of view and adjustable diopter eyepiece making it ideal for rapid target acquisition at short and medium ranges. Features: 1x magnification Etched reticle for increased clarity with or without illumination 6-MOA CQB circlea dot with large outer ring Extremely wide field of view (37.5 ft @ 100 yards) Adjustable diopter eyepiece Ideal for rapid target acquisition at short and medium ranges Digital push-button brightness controls Auto-off feature conserves battery power when not in use