Today's hunters and sport shooters have access to better and higher-performance equipment than ever before. From super accurate laser rangefinders to carbon-wrapped barrels, we can now purchase equipment that would have only been available to the military just decades ago. As technology like high-performance optics starts to commingle with today's lightning fast microprocessors, there are also whole new classes of gear that are revolutionizing the consumer marketplace. In this article, we'll go deep on one such technology—the best thermal scopes.
Thermal scopes were once a technology that was reserved strictly for the most elite military snipers. Though heat signatures have been valuable for target acquisition for decades, thermal scopes have been out of reach for the average consumer until the last decade. Today you don't have to be on advanced operations to enjoy the benefits of thermal optics. Hunters and shooters can now get their hands on excellent thermal optics for prices comparable to some premium-grade non-thermal scopes.
With new products and manufacturers hitting the market each year it can be hard to know which are the best thermal scopes for your money and which are cheap knock offs. So we dug deep into some of the best thermal scopes on offer today from the industry's top brands. While you'll almost definitely pay more for a thermal scope than a traditional optic, you may be surprised by how affordable thermal scopes can be.
So if you're ready to tune up a rifle for home defense, predator hunting, and just plain fun on the range, then read on. We'll get you up to speed on everything you need to know about the best thermal scopes available today.
Comparison Table
Product FAQ
1. How Do Thermal Scopes Work?
2. Are Thermal Scopes Legal for Hunters and Sport Shooters?
3. Can You Mount Thermal Scopes on Any Rifle?
4. What Should You Look for in the Best Thermal Scope?
5. Who Should Consider a Thermal Scope?
How We Reviewed

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For this review, we considered the best thermal scopes from a range of manufacturers at different price points and quality levels. We broke down the features for each scope and also looked that their prices, availability, warranty, and pros and cons. We also boiled our findings down into one overall pick for the best thermal scope out of the bunch. Though we'd never say this scope is perfect for every hunter, shooter, or serviceman out there, we feel it's a superb combination of price, performance, and overall value.
Overall Price Range
There is a wide range of prices for the best thermal scopes, but they range between around $1,500 and $5,000. Scopes on the lower end of the price spectrum will usually offer lower-quality glass and lower image resolution. High-end thermal rifle scopes offer premium-lenses with high-end coatings and greater image resolution for better down range clarity.
What We Reviewed
ATN Thor HD 384 Smart Thermal Rifle Scope
- Excellent Image Performance with 384x288 Sensor - it is the ideal night vision scope because it...
- Ballistic Calculator - the system allows you to calculate the trajectory of your bullet, helping you...
- Build-in Smart Rangefinder - will make your life easier than ever. Discover how using a rangefinder...
Features
The ATN Thor HD 384 Smart Thermal Riflescope offers an excellent complement of features for the hunters and shooters that need thermal power at a competitive price. This unit features a 384x288 Sensor for powerful resolution and built-in video recording that can be activated through your gun's recoil. With a built-in smart range finder, ballistics calculator and smooth zoom feature the ATN Thor HD 384 could easily sit amongst the best thermal scopes at the lowest price points.
PROS
CONS
Armasight by FLIR Zeus 336 Thermal Rifle Scope
No products found.
Features
The Armasight Zeus 336 3-12x50mm Thermal Imaging Rifle Scope by Flir is a top-end option for demanding shooters or professionals who need exceptional performance. This offers a 3X to 12X optical zoom along with a solid state, uncooled thermal transmission system. Flir is a leader in the thermal imaging space that sensors on the Zeus 336 are powerful enough to obtain your target regardless of obstructions like smoke, snow, dust, and atmospheric particulate. This unit could be the best thermal scope choice for professional operators as it also yields little infrared to be detected by opposing optics.
PROS
CONS
Warranty
Armasight covers this optic with a three-year limited warranty.
No products found.
Trijicon Teo Reap-IR Mini Therma Scope
- Great for any outdoor enthusiast
- Made in the USA
- Very easy to Use
Features
The Trijicon Teo Reap-IR Mini Thermal scope packs industry-leading technology into a footprint that is both durable and lightweight. Though this scope is not much bigger than Trijicon's flagship ACOG optic, it's vastly more powerful. This scope is packed with a thermal sensor digital contrast enhancement and digital focus control features and stadiametric ranging edge detection. With 60Hz of thermal frame rate and programmable reticle settings, you'll quickly dial in views that are accurate and dependable. Trijicon also offers an 8X zoom on the internal display screen.
PROS
CONS
Warranty
Trijicon covers this scope with a limited three-year warranty.
Pulsar Trail XP Thermal Rifle Scope
- 1,970yd detection range with 640x480 resolution, 17UM Pixel pitch core
- 8x digital zoom- continuous zoom and 2x, 4x, 8x stepped zoom
- Picture in picture digital zoom
Features
The Pulsar Trail XP Thermal Riflescope is amongst the best thermal scopes for hunters and shooters that need superior down range accuracy. This scope has an impressive 1,970-yard thermal detection range and offers an 8X digital zoom. The zoom on this scope is projected within an internal screen that can be stepped down to 2X and 4X as well. With 640x480 resolution and a 17UM Pixel pitch core, the Trail XP offers excellent clarity. You can also capture the hunt with recoil activated HD video recording on board.
PROS
CONS
Warranty
This unit is backed with the three-year limited warranty.
Armasight by FLIR Zeus 640 Thermal Rifle Scope
No products found.
Features
Like the Zeus 336, Armasight by FLIR Zeus 640 2-16x50mm Thermal Imaging Rifle Scope offers pro-grade versatility at a mid-level price. This scope is loaded with the FLIR Tau 2 Vox microbolometer core and works just as well as a handheld spotting and locating scope as it does on a picatinny rail. The Zeus 600 offers 640 x 512 pixel thermal imaging with 30Hz resolution. Shooters can use the simple user-interface to select between a wide range of color palettes including White Hot, Black Hot, Fusion, Rainbow, Globow, Ironbow 1, Ironbow 2, Sepia, Color 1, Color 2, Ice-Fire, Rain, and OEM Custom.
PROS
CONS
Warranty
Armasight covers this scope with a three-year limited warranty.
No products found.
ATN THOR-HD 640 Thermal Rifle Scope
- Excellent Image Performance with 640x480 Sensor - it is the ideal night vision scope because it...
- Ballistic Calculator - the system allows you to calculate the trajectory of your bullet, helping you...
- Build-in Smart Rangefinder - will make your life easier than ever. Discover how using a rangefinder...
Features
The ATN THOR-HD 640 Thermal Rifle Scope offers many of the same high-grade features as the Thor HD 384 but adds improved 640x480 sensor quality. This unit packs an impressive 5X to 50X digital zoom, which put it in the same class as the best thermal scopes on the market. What the Thor 640 shares with the 340 is the powerful ballistic calculator, built-in smart rangefinder, proprietary Smooth Zoom function, and recoil activated high-resolution HD video recording.
PROS
CONS
Warranty
Like the Thor 360, ATN covers the Thor 640 with a three-year limited warranty against any defects.
Pulsar Trail XQ Thermal Rifle Scope
- Stream vision app connects scope to Smart device
- Waterproof (IPX7)
- UP to 8 hours of Battery life
Features
The Pulsar Trail XQ Thermal scope offers an impressive detection range of nearly 2,000 yards in a housing that is IPX7 waterproof and fog proof. This scope offers a wide range of optimized color pallets and has a 50Hz refresh rate so you'll know you're getting the best image from your optic every time.
Programming this scope is easy with Pulsar's intuitive user interface and you'll never need to worry about weather. Pulsar rates this scope for full functionality from -13° to 122°F. With 8gb of internal memory, you'll have plenty of storage space to record the key moments of any hunt. Playing them back on the built-in 640x480 AMOLED screen with also give a true representation of how it all went down.
PROS
CONS
Warranty
Pulsar covers this scope with a three-year limited warranty.
FLIR R-Series RS32 1.25-5 Rifle Scope
- Featuring a 12 μm Pixel pitch and industry leading on-chip video processing
- On-board video recording and image capture
- Multiple color palette
Features
Flir has provided the brains behind other brands' thermal imaging for years so it's not surprising they offered a great product with the FLIR R-Series RS32 1.25-5 Riflescope. This scope offers an impressive 16X digital magnification and a mix of different resolution and lens options. What sets this scope apart from many of its peers is the eye relief. The RS32 offers a healthy 3 inches of eye relief making the scope both look and feel more like a traditional scope. It also comes in at a price point that is more attainable for average consumers.
PROS
CONS
Warranty
This scope is backed by a three-year limited warranty against any manufacturing defects.
Armasight by FLIR Predator 336 Thermal Imaging Scope
No products found.
Features
The Armasight by Flir Predator 336 2-8x25mm Thermal Imaging Rifle Scope is another of the best thermal scopes for hunters with a lower budget. This scope incorporates Flir's thermal technology in the form of their Tau 2 17-micron uncooled core. Users can navigate Armasight's simple interface to select several reticle patterns including Dot 4 MOA, Line Dot, Cross-Center Dot, Cross, Crosshair, and No Reticle.
The high-end intern OLED screen allows both target acquisition and video playback with exceptional clarity. Armasight also offers continuing support for this scope whenever there are software and firmware updates.
PROS
CONS
Warranty
This scope is covered with a three-year limited warranty against manufacturing defects.
No products found.
Flir ThermoSight R-Series RS64 Thermal Night Scope
- Powerful and compact hardware is protected by a robust body
- Outstanding thermal image quality in total darkness or through smoke, haze, fog, rain
- On-board video recording, image capture and storage. UP to 2.5 hours of recording time or up to 1,...
Features
The Flir ThermoSight R-Series RS64 2-16X Thermal Night Vision Rifle Scope picks up where the RS32 begins and expands the resolution and screen size. This scope has an impressive 640x480 Vox Display. This scope offers a superb light capturing with an oversized 60mm objective lens. This is comparable to smaller sized spotting scopes and will help achieve crisp and clean images even in the lowest light conditions.
With three distinct reticle options and digitally programmed zero settings, you'll have no trouble getting up and running with this scope right out of the box. Also, Flir set this scope up with a high-grade rechargeable battery offering around four hours of use.
PROS
CONS
Warranty
Like the RS32, Flir backs this scope with a three-year limited warranty.
The Verdict

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Every hunter, shooter, soldier, and tactical law enforcement agent will have different needs when it comes to optics. Choosing the best thermal scope for your needs, therefore, is truly a matter of context and preference. If you're a forward operator whose life depends on long-range thermal detection and 50X magnification, then a high-end scope will be worth every penny.
For casually hog hunters, on the other hand, a smaller internal screen, lower refresh rate, and shorter thermal detection may work out just fine and save a boatload of money. The only way to be positive you've chosen the best thermal scope for your needs to bit the bullet (not literally) and try a few.
With that said, our top pick as the best thermal scope from this group is the ATN THOR-HD 640. This scope offers a huge number of features for a price that is attainable for the average hunter who is willing to save a few pennies. With an impressive 640x480 internal screen and 50X digital zoom, this scope will out-compete most scopes in its price range. It will also have you dialed in on thermal signatures at greater distances than more expensive scopes. Whether you're a professional shooter or a weekend warrior this scope is definitely worth a look.
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Last update on 2021-03-06 at 01:51 / Affiliate links / Images from Amazon Product Advertising API