LaserMax Rifle Reflex Red Dot Sight 3 MOA Red Dot Matte Black. The housing is constructed of aircraft grade 7071 aluminum. The sight is ideal for AR and AK platform rifles. The LM-RRDS comes equipped with an industry first forward-facing external light sensor which automatically adjust the brightness of the red dot based on ambient lighting conditions. A high-rise/low-rise picatinny mount mounting hardware and battery are included. Specifications for LaserMax Rifle Reflex Red Dot Sight: Manufacturer: LaserMax Color: Matte Black Fabric/Material: Aluminum Magnification: 1 x Objective Lens Diameter: 22 mm Reticle: 3 MOA Red Dot Illumination Type: LED Illumination Color: Red Eye Relief: Unlimited Adjustment Click Value: 1 MOA Emitter Type: Enclosed Battery Type: CR2032 Lithium Metal Battery Quantity: 1 Battery Life: 10000 hours Red Dot Sights-Footprint: Not Applicable Lens Type: Glass Adjustability: Adjustable Features of LaserMax Rifle Reflex Red Dot Sight: External Forward-Facing Light Sensor for Auto Brightness Management 10000 hour run time Brightness settings: 8 Day / 2 Night Shake to awake Reticle: 3 MOA Red Dot Winadage/Elevation Adjustment: 1 click = 1 MOA Operation Modes: Auto brightness or manual adjust Mount: High-rise and low-rise picatinny mount Power Source: CR2032 included Package Contents: LaserMax Rifle Reflex Red Dot Sight