The Vortex Viper Shotgun Enclosed Micro Green Dot features a multi-reticle system that quickly adapts to diverse shooting situations, paired with a bright green dot that delivers exceptional visibility across a wide range of lighting conditions for fast and confident target acquisition. A large viewing window maximizes field of view and situational awareness during fast-moving target scenarios, while unlimited eye relief provides non-critical eye placement for rapid and instinctive mounting in the field.Specifications and Features: Manufacturer: Vortex Model: Viper Shotgun Enclosed Micro Green Dot Magnification: 1x Reticle: Multi-Reticle Dot Color: Bright Green Eye Relief: Unlimited Mounting Footprint: Integrated, Drilled and Tapped Shotguns Adjustment Graduation: 1 MOA Travel Per Rotation: 30 MOA Max Elevation Adjustment: 100 MOA Max Windage Adjustment: 100 MOA Parallax Setting: Parallax Free Battery Type: CR2032 Battery Run Time: 50,000 hrs. Battery Load: Side Load Motion Activation: Yes, 10-Minute Auto-Shutoff Housing: 6061 Aluminum Enclosed Lens: Aspherical, Fully Multi-Coated Proofing: Waterproof, Fogproof, Shockproof