Holosun Ronin Advanced Enclosed Reflex Micro Green Dot Sight 1x1.57x1.18 Multi Reticle Black. Built with a 7075 T6 aluminum housing the sight comes with an absolute co-witness Picatinny mount that puts the dot 1.42" above the rail. The multiple reticle system has three options: a 2 MOA dot a 65 MOA circle and a combined reticle. The sight's green Super LED is powered by a CR2032 battery providing 12 brightness levels including four night-vision settings and delivering 50000 hours of battery life. The battery is backed up by Holosun's Solar Failsafe technology which uses solar power to keep the sight working if the battery fails. Specifications for Holosun Ronin Advanced Enclosed 1x1.57 x 1.18 Reflex Micro Green Dot Sight: Manufacturer: Holosun Color: Black Magnification: 1 x Objective Lens Diameter: 1.18 - 1.57 in Reticle: Multi Illumination Type: LED Illumination Color: Green Eye Relief: Unlimited Adjustment Click Value: 1.5 MOA Emitter Type: Enclosed Battery Type: Lithium Metal CR2032 Weight: 10.4 oz Condition: New Quantity: 1 Red Dot Sights-Footprint: Not Applicable Package Contents: Holosun Ronin Advanced Enclosed 1x1.57 x 1.18 Reflex Micro Green Dot Sight Holosun RONIN-AEMS-MAX-GR: Ronin Advanced Enclosed Reflex Micro Green Dot Sight 1x1.57x1.18 Multi Reticle Black