The AGM NVG-40 is a dual-channel night vision system. With a 40° field of view, it provides a large visual field without needing to move the binoculars. The NVG-40 uses advanced multicoated optics and is built to last with a compact composite housing. The device can be outfitted with either a Gen 2+ or Gen 3 high-performance image intensifier tube (IIT). The bright light cut-off feature ensures that the high-quality photocathode tube is protected. The NVG-40 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-40 can run up to 20 hours. Also equipped with an integral infrared illuminator for reading in the dark.