The Armasight Orion 4x Riflescope is a high-performance, mid-range night vision weapon sight that provide excellent observational, target acquisition, and aiming capabilities for the most demanding sports shooters, hunters, and security personnel. Armasight Orion 4x sight is arguably the most dependable, highest-performing weapon sight you can find in the Gen. 1+ category. We have housed our top class optics and image intensifier tubes within ruggedly designed, rubberized aluminum bodies. For improved accuracy and ergonomics, all Orion series scopes feature precision top wheel focus. The Armasight Orion 4x scope is the best solution for any tactical shooter or hunter seeking to improve the accuracy of their shooting in dark environments. Specifications: Generation: 1+ Magnification: 4x Lens system: F1.4, F90mm Field of view (°): 12 Focus range (m): 10 to infinity Diopter adjustment (dpt): +5 to – 5 Exit pupil (mm): 8 Controls: Direct Power Indicator: Yes Power Supply: CR-123 Lithium (1) Battery life (hour): 40 Infrared Illuminator: Detachable Long Range Illuminator Reticle System: Red on Green Windage & Elevation Adjustment: 3/4 MOA Environmental Rating: Water-Resistant Operating temperature (°C): -40 to +50 Dimensions (LxWxH, mm /in): 323 x 115 x 98 / 12.7 x 4.5 x 3.8 Weight (kg/lbs): 1.5 / 3.2