The U.S. military uses several different night vision goggles depending on the branch, unit, and mission. The most widely fielded system for Army infantry is the Enhanced Night Vision Goggle-Binocular (ENVG-B), made by L3Harris. Special operations forces use the four-tube GPNVG-18 with its 97-degree panoramic field of view, while Marine rifle squads field the Squad Binocular Night Vision Goggle (SBNVG), and military pilots rely on the AN/AVS-9 aviator system.
ENVG-B: The Army’s Standard Infantry Goggle
The ENVG-B is a helmet-mounted, dual-waveband goggle that fuses two types of imaging into a single view: traditional image intensification using white phosphor tubes and a thermal imager. This means soldiers see both the amplified ambient light you’d expect from night vision and a heat-detecting overlay that picks up people, vehicles, and other warm objects even through smoke, dust, or foliage. The goggle offers a 40-degree field of view with options to display thermal imagery in white-hot, black-hot, or outline modes.
What sets the ENVG-B apart from older systems is its augmented reality capability. Soldiers can see waypoints, friendly force positions (Blue Force tracking), and battlefield imagery projected directly into the goggle display, eliminating the need to look down at a map or radio screen. The system also allows soldiers to wirelessly link their weapon-mounted sight to the goggle, meaning they can aim around corners or over barriers without exposing themselves. Intel flows in real time up and down the chain of command through the same display.
GPNVG-18: The Four-Tube Panoramic Goggle
The Ground Panoramic Night Vision Goggle, also made by L3Harris, is the distinctive four-tube system most associated with special operations units. Where standard dual-tube goggles provide roughly 40 degrees of vision, the GPNVG-18 delivers a 97-degree panoramic field of view. That’s close to natural human peripheral vision, which gives operators far better situational awareness when clearing rooms, moving through tight spaces, or operating vehicles at night.
The four-tube design uses two central tubes for direct forward vision and two angled outboard tubes for peripheral coverage. These units are significantly more expensive than standard-issue goggles and are typically reserved for tier-one special operations forces rather than conventional infantry. The added weight of four tubes also requires a robust helmet mounting system to keep the goggles stable and balanced during fast movement.
SBNVG: The Marine Corps Solution
The Marine Corps took a different path by fielding the Squad Binocular Night Vision Goggle to its rifle squads. Marine Corps Systems Command accelerated acquisition of about 1,300 units using existing Defense Logistics Agency contracts, with initial deliveries reaching infantry units at Camp Lejeune in December 2018. The SBNVG combines a binocular night vision device with an enhanced clip-on thermal imager, giving Marines both image intensification and heat detection in a single package.
The priority for fielding went to Marine rifle squads first, with plans to eventually expand across the entire ground combat element. The binocular design gives Marines depth perception that monocular systems lack, which matters for tasks like judging distance, navigating uneven terrain, and engaging targets at night.
AN/AVS-9: The Standard Aviator Goggle
Military pilots have different requirements than ground troops. The AN/AVS-9, manufactured by Elbit Systems of America, is the standard night-flying system for the U.S. Air Force and Navy, and it’s in service in more than 60 countries. Both fixed-wing and rotary-wing pilots use it. The system runs on Generation 3 gated Pinnacle tubes, which represent some of the highest-performing image intensifiers available and maintain clarity across the full range of light conditions encountered during night flight.
Pilot-specific features include an optimized objective lens focus for constant image clarity, independent eye-span adjustment to accommodate different face shapes, and 25mm eye relief that works with eyeglasses. A low-profile battery pack improves head mobility inside the cockpit, which matters when pilots need to check instruments and scan for obstacles rapidly. An optional clip-on power source even allows the goggles to be used without a helmet.
How Image Intensifier Tubes Are Graded
All current U.S. military night vision uses Generation 3 image intensifier tubes or newer variants. These tubes amplify tiny amounts of ambient light (starlight, moonlight, even infrared illumination) into a visible image. The key performance metric is the figure of merit (FOM), which combines resolution and signal-to-noise ratio into a single number. Higher FOM means a clearer, sharper image with less visual grain.
Standard Gen 3 tubes with an FOM under 1,250 offer resolution between 51 and 64 line pairs per millimeter. Higher-tier Gen 3 tubes rated at FOM 1,600 push resolution to around 64 line pairs per millimeter with better signal-to-noise ratios. The most advanced variants, sometimes called Gen 3 Pinnacle or Gen 4 (depending on the manufacturer), reach 64 to 72 line pairs per millimeter with signal-to-noise ratios of 25 to 30. All modern military tubes have a rated lifespan of about 10,000 hours.
White Phosphor vs. Green Phosphor
Older night vision goggles produced the familiar green-tinted image using green phosphor screens. Newer military systems, including the ENVG-B, use white phosphor instead. The difference is immediately noticeable: white phosphor produces a grayscale image that resembles natural nighttime vision rather than the monochrome green glow. This grayscale output provides better contrast sensitivity, making it easier to distinguish objects, identify faces, and pick out details in complex scenes. Because the image looks more natural, white phosphor also causes less eye fatigue during extended use, which matters on long patrols and overnight operations.
How NVGs Mount to Helmets
Modern military NVGs attach to ballistic helmets through a standardized mounting system. The Wilcox G24 low-profile breakaway mount has become the industry standard. It uses a dovetail shoe interface that securely locks goggles into place while remaining compatible with nearly all current NVG models. The mount attaches to a shroud on the front of the helmet, with different shroud configurations available for older MICH/ACH helmets (single-hole pattern) and newer designs (three-hole pattern).
The breakaway feature is a deliberate safety design. If the goggles snag on something during a fall, a vehicle rollover, or a parachute jump, the mount releases rather than transmitting that force into the wearer’s neck. A lanyard keeps the goggles from being lost after a breakaway event.
IVAS: The Next Step
The Army’s next major leap is the Integrated Visual Augmentation System, a Microsoft-built augmented reality headset that goes well beyond traditional night vision. IVAS combines night vision, thermal imaging, and a full heads-up display with mapping, targeting, and sensor data layered over the real world. After years of testing and iteration, the Army reported in 2024 that it was on pace to field the full-rate production version (IVAS 1.2) to operational units as early as late fiscal year 2025. Earlier versions (IVAS 1.0 and 1.1) were already going to selected training and doctrine units during fiscal year 2024.