Meprolight MCO PRO Reflex Red Dot Sight 1x 2/68 MOA Speed Ring Black. Meprolight's advanced closed emitter design shields against all elements for peak performance in any environment. It features a user-selectable 3-segmentreticle with 10 Day/2 NV brightness settings allowing you to customize visibility for every scenario. Setting 5 gives you an impressive 25000plus hours of battery life complemented by automatic and manual brightness control along with a convenient Shake Awake feature. Plus the recoil block ensures alignment and zero hold. It is IP67 water/dust proof rated. This durable optic is built for precision. Specifications for Meprolight MCO PRO 1x Reflex Red Dot Sight: Manufacturer: Meprolight Color: Black Fabric/Material: 7075-T6 Aluminum Magnification: 1 x Objective Lens Diameter: 0.91 - 1.26 in Reticle: 68 MOA Ring w/ 2 MOA Dot Illumination Type: LED Illumination Color: Red Brightness Settings: 10 Eye Relief: Infinite Adjustment Click Value: 0.5 MOA Emitter Type: Enclosed Parallax: 50 yds Battery Type: Lithium Metal CR2032 Battery Life: 25000 hours Water Resistance Level: IP67 Weight: 5.33 oz Red Dot Sights-Footprint: Not Applicable Lens Type: Glass Dimensions: 2.06x2.28x1.59 in Mount Type: Picatinny Gun Rail: MIL-STD 1913 Features of Meprolight MCO PRO 1x Reflex Red Dot Sight Closed emitter design shields against all elements User selectable 3-segment reticle 10 Day/2 NV brightness settings Automatic and Manual Brightness Control Shake Awake Recoil block for alignment and zero hold Package Contents: Meprolight MCO PRO 1x Reflex Red Dot Sight Meprolight 901142372: MCO PRO Reflex Red Dot Sight 1x 2/68 MOA Speed Ring Black 901142372