The AGM NVG-50 is a dual-channel night vision system. The NVG-50 uses optics which give it a wider 51° field of view with the tradeoff of shorter eye-relief. The NVG is made of a compact composite housing for durability, and features advanced multi-coated optics. The bright light cut-off feature ensures that the high-quality photocathode tube is protected. The NVG is also equipped with Manual Gain Control, which adjusts the image brightness, providing the highest possible image quality even in changing light conditions. Operating from a single AA alkaline battery or CR123A battery, the NVG can run up to 20 hours. Also equipped with an integral infrared illuminator for reading in the dark.