The PS-31 Binocular Night Vision Device (BNVD) is a compact, lightweight, dual tube goggle to replace the legacy PS-15. In a sea of dual tube night vision goggles, the PS-31 is one of the smallest and lightest units by far. The PS31s can be outfitted with various levels of high-performance US made Gen 3 image intensifier tubes. Working directly with U.S. Operators input, the PS-31 was designed to increase system resolution, significantly reduce head borne weight, improve system of center of gravity, provide additional operational utility, and improve overall operator situational awareness and adding a 50 deg FOV for maximum visibility in the field. These tubes are auto gain-capable, allowing the system to adjust the brightness of their image as situations on the ground dictate. The PS-31 BNVD has independently pivoting tube housings that allow the operator to run the goggle in a binocular or monocular configuration. Using two tubes at once allows the eyes to create depth perception ...