AGM Global Vision 11P14122453031: The AGM Global Vision PVS-14 Night Vision Monocular is a rugged, lightweight, multi-purpose night vision device that has repeatedly proven itself in combat. It can be used as a handheld device, or mounted on the included head harness. With the proper accessories, it can also be mounted to combat helmets or weapons, providing night vision capabilities to daytime optical sights. The PVS-14 monocular is a full-featured unit, weighing less than 12.4 ounces/ 0.32 kilograms. The unit includes manual gain control, an automatic bright light shut-off feature, and a built-in Infrared (IR) illuminator. The automatic brightness control ensures a consistent, steady image by automatically adjusting the visual in real time, based on the available light in the area. The bright light shut-off feature ensures that the high-quality photocathode tube is protected.