The RONIN-AEMS-MAX is a robustly constructed, enlarged rifle sight designed to provide a maximum field of view. The Ronin AEMS MAX features a large 1.57 1.18 objective lens for enhanced shooting performance. The Ronin AEMS MAX is made from 7075 aluminum and includes Shake Awake technology with up to 50k hour battery life. Product Features Solar Failsafe Shake Awake Multi-Reticle System (MRS Quick Detach Mount Product Specifications Reticle: 2 MOA Dot and 65 MOA Circle Light Wavelength: 540nm Reticle Color: Red Parallax Free: Yes Unlimited Eye Relief: Yes Magnification: 1x Multi-Coatings: Yes Power Source: Solar and Battery Battery Type: CR2032 Battery Life (Hours): 50000 Brightness Setting: 8 DL and 4 NV Window Size: 1.57 1.18 Dimension (in): 1.94 2.51 Weight (oz): 10.4 Housing Material: 7075 T6 Aluminum Surface Finish: Anodize Adjustment per Click: 0.5 MOA W&E Travel Range: 50 MOA Storage Temperature: -40?~65? Working Temperature: -30?~60? Submersion: IPX8 Vibration: 1000G