As a professional scope manufacturer, AIM-O goal is to provide the best airsoft scopes for airsoft players and professional players.DetailsAIM MRO Red Dot Sight 2.0 MOA Matte (Black) Magnification: 1X Objective Size (mm): 25mm Length (in): 2.6 in. Weight(oz): 4.1 oz (116g) with battery installed, without mount Illumination Source: Battery Reticle Pattern: Dot Day Reticle Color: Red Bindon Aiming Concept: No Eye relief(in): Infinite Adjustment @ 100 yards (clicks/in): 1 click =1/2 MOA Housing Material: 7075-T6 forged aluminum Batteries: 1 CR2032 Lithium Battery (not included) Battery Life: 5 years of continuous use at day setting “3” (setting 5 of 8) at 70°F（21°C） Adjustment Range :70 MOA Total Travel Illumination Settings: 8 Dimensions (LxWxH): 2.6 in. x 1.7 in. X2.0 in. (66mm x 43mm x51mm) without mount
