Overall Rating



  • Compact and lightweight
  • Clear images in various conditions
  • Easy mounting on most weapons
  • Compatible with Mil-Std-1913 Picatinny rail
  • Rugged construction and minimal operator fatigue
  • Multiple battery options and silent operation


  • High price tag
  • Limited use for hunting or shooting at the range
FLIR ThermoSight T75

Recommended For: Anyone who needs a compact and powerful thermal sight that can take a beating and still offer continuous high performance.

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If you’re in special law enforcement, private security, or you’re just a combat and tactical weapons enthusiast, then we’ve got another piece of equipment for you to add to your wish list. We’re talking about the FLIR T-75, a highly sophisticated thermal sight that can give you the edge you need -when you need it most. 

This is a serious piece of equipment that is built to perform. It’s also highly versatile, adapting quickly to most weapons platforms as well as being compatible with all combat optics and able to be installed before a day optics as clip-on, rail mounted ThermoSight.


flir systems t75 thermosight review - Consumer Files

The Flir systems T75 ThermoSight packs a lot into a relatively small size. Measuring only 7.3 inches long by 2.8 inches wide by 3.5 inches high, the FLIR T75 weighs just 1.75 pounds -including batteries and all necessary mounting hardware.

Despite its small size and light weight, this ThermoSight can take a beating. It is specifically designed to withstand thousands of rounds of gun shock while simultaneously minimizing impact on the weapon and reducing operator fatigue.

The compact size and low profile also help to prevent snagging and reduce interference with other devices. It can also withstand operating temperatures from -40 degrees Fahrenheit to 120 degrees Fahrenheit. For storage, temperatures should not exceed -40 degrees Fahrenheit nor 160 degrees Fahrenheit.

Truly versatile, the ThermoSight T75 can be used accurately as direct view, as a clip on with the quick detach throw lever or mounted onto a Picatinny rail system.

With longwave thermal imaging, you will have a clear image with sharp details of your target whether using during the day or in total darkness. Obscurants such as fog, dust, and smoke are not a problem and will not disrupt the image quality.

The FLIR Systems T75 ThermoSight can also be used for video surveillance thanks to the included video output cable and a mini-joystick.

The mini-joystick can also be fitted beneath your thumb under the handguard when supporting their weapon, allowing you to change the sight and adjust the IR image without moving your hands or moving the weapon.

It also features adjustable magnification of 1x, 2x, and 4x. This affords you a wide field of view to let you see everything around you and a narrow field for accurate identification and target acquisition. The FLIR T-75 has an operating range of up to 800 meters or 875 yards. All magnification and field of views are compatible for use with standard day optical sights.

Unlike many ThermoSights, the ThermoSight T75 can be powered by two or three AA batteries, either lithium or alkaline, as well as one or two DL 123 batteries, in any orientation. It also has a long battery life, with three AA lithium batteries providing six hours of continuous use.

It comes with an adjustable quick detach throw lever mount, remote control pad, video output cable, coupling light shroud/eye relief, batteries, lens cleaning kit, soft carrying case, operators manual, and a graphic training aid.

FLIR T-75 in Action

Watch this footage of a rabbit at 225 yards. Conditions: night with heavy rain.


  • Compact and lightweight
  • Provides clear images in day, total darkness, and despite fog, dust, and smoke
  • Mounts quickly onto nearly every weapon
  • Fully compatible with any Mil-Std-1913 Picatinny rail system
  • FLIR handles the entire supply chain for the technology
  • Rugged construction can take a beating while still helping to minimize operator fatigue
  • Designed not to interfere with other devices
  • Can be powered by multiple different battery types
  • Silent operation at one meter out
  • Can be used for video surveillance
  • Can be remotely operated


  • High quality means high price tag
  • If you only hunt or shoot at the range, this ThermoSight doesn’t offer much outside of cool factor

Conclusion for our Flir T-75 Review

The FLIR Systems T-75 is powerful and versatile ThermoSight that provides high performance and rugged construction that won’t let you down. Its design and clear attention to detail ensure that you won’t have to sacrifice additional gear or stealth in order to use this piece of equipment.

While it doesn’t have much to offer to the casual user, the FLIR Systems T75 ThermoSight can literally be a lifesaver for those who frequently find themselves in intense and/or combat situations. If you’re in need of a high-quality ThermoSight that can take a beating and still offer continuous high performance, the FLIR T75 is due some strong consideration.

Official Manufacturer Support

Sources and Official Brand Websites:

FLIR Systems  |  FLIR Info  |  Thermal Sights