The AEMS-Core-Green (Advanced Enclosed Micro Sight, Core features) is a compact optical sight with 2x larger lens surface area than standard 20mm micro style sights for increased FOV. AEMS-Core-Green is made from durable cast aluminum and includes a 1.63" dot height (lower 1/3 co-witness) Picatinny mount. AEMS-Core-Green features Holosun's Green Super LED and includes 10 daylight and 2 night vision compatible intensity settings, a precision 2MOA, and Shake Awake technology. A side mounted battery trays houses a 2032 battery which provides up to 50k hour battery life. AEMS-Core-Green strikes a balance between performance and features for users of any level. Reticle: 2 MOA Dot Reticle Color: Green Dot Height: 1.63" Parallax Free: Yes Unlimited Eye Relief: Yes Magnification: 1x Multi-Coatings: Yes Power Source: CR2032 Battery Battery Life: 50,000 Hours Brightness Settings: 10 Day Light & 2 Night Vision Weight: 3.9 oz Housing Material: Durable Aluminum Adjustment Per Click: .5 MOA W&E Travel Range: + or - 50 MOA Submersion: IP67 Vibration: 1000G Color: Black