Thermal Riflescope

The Burris Thermal Scopes are packed with features that will help you take night hunting to a whole new level! Offering 4 power zoom, hot track, stadiametric ranging and 5 unique color palettes – this scope is packed with features to help you own the night.

MSRP: $2,831 - $3,239

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Item Number
Pixel Size
Frame Rate
Focal Length
Visual Angle
Digital Zoom
Eye Relief
Dioptric Compensation
Color Palettes
Working Hours
Mounting Type
BTS 50
50mm F1.2
Manual Focus
2x, 4x
1024x768 Color OLED
Black hot, white hot, red hot 1, 2, and 3, green hot, blue hot
≥3h standard, ≥5h with 3400 mAh high-output battery
Picatinny rail
25.4 oz. (720g)
9.8(l)×3.5(w)x2.9(h) in. / (250×90×75mm)
BTS 35
35mm F1.2
Manual Focus
2x, 4x
1024x768 Color OLED
Black hot, white hot, red hot 1, 2, and 3, green hot, blue hot
≥3h standard
Picatinny rail
23.2 oz. (660g)
9(l)x3.5(w)x2.9(h) in. / (230×90×75mm)
Thermal Optics
  • 7 color palettes
  • Stadiametric ranging
  • 10 reticle options
  • Hot track
  • Manual and auto NUC
  • Adjustable contrast
  • Adjustable brightness 
  • Intuitive, one-hand operation
  • IP67
  • 2.3-9.2x magnification, 35mm Objective
  • 3.3-13.2x magnification, 50mm Objective
  • Torque Specifications: 60 in-lbs

Battery Information

  • Runs on 18650 Lithium-ion batteries, but will accept (2x) CR123As
  • Acceptable length for batteries is 65-68mm
    • Avoid batteries with a protection circuit as they are typically longer than 68mm.
  • We recommend 3400mAh for max runtime

US Warranty | International Warranty

Thermal Riflescope User Manual
November 30, 2020
New for 2022 | Burris Optics
May 23, 2022
Thermal Riflescope is rated 4.3 out of 5 by 9.
Rated 5 out of 5 by from Turned my scope into a thermal in seconds! Using the adapter I attached the Burris Clip On to my scope. Since my scope was already sighted in I was able to hit targets in the dead of night out to 800 yards in seconds! The nice thing about the Clip On is you can use it as a hand held to scan and then quickly attach it to your scope to hit your target. I tried the Burris Clip On at a range next to a pile of other clipon thermals. The BTC was the easiest to use, it had the fastest refresh rates (instant), it had similar image quality to the next best option and surprise surprise it was nearly half the price of all the others!
Date published: 2021-01-13
Rated 3 out of 5 by from Can’t give it 5 stars, poor release and confusing. First let me rate the product, I bought the BTC35. Given its price point and that it is from Burris, I expected better. I will highlight the best point of the BTC35, but ultimately I would consider either waiting for Burris to fix its release or strongly consider the options out there. If you are looking for a feature rich product, this isn’t it. No saving images, no tracking, and right now, it’s only so so thermal monocular. What it does have in features, it does very well. But for this money, I’m not sure it’s the best option. For the features: the Hot Track is a nice feature. Though if there are multiple similar heat objects, it can get busy fast and you either end up turning it off or it simply becomes ignored noise. The red hot feature is probably one of it best features. It does a great job of making those hot sources much more visible. Only negative, is if you are in a blind in pitch black, it quite bright and that bright red (understanding this was tested with varying the contrast and brightness to different values to test) gives you a bit of retina burn. So you find your target, but you’re left with that spot in your vision for short while after. The highest points go to clarity in its class. This thermal sensor is slightly higher resolution that most of the competitors in this class, and it pays off. I would say it’s closer to a 640 res clarity than most of the 300 range sensors. The refresh rate is the only negative, it’s not bad and crystal clear when properly focused and remaining static. It’s when you pan a bit too fast that it is visible. You can see the screen shift slightly and are almost guaranteed it will nuc at that point giving you that brief freeze of the image. I, like most others not sent a full kit to demo for a review, have to wait for the mounts to test this fully. At that point, I will post a revised review. There are no adapters currently available to actually clip it on. So you’re not buying a clip on, you’re buying a “Clip-On Capable” product. I agree with the other review that this is arguably a challenge to the marketing. Most other manufacturers include at least one mount that satisfies the name sake and advert of being a Clip On device. As it is, it is Clip On Capable, once they actually release the adapters and mount, which if they range as other could be an additional $100 per unit. Burris being the company they are will no doubt reach out to early adopters and supply them with something, but for now, it is what it is. The device does come with a USB cable, with no defined purpose. It comes with a charger with no purpose. It burns through CR123’s faster than the first gen NVG’s I was issued years ago (1-2 hours on Energizer CR123’s). I do own IMR batteries in 2400mah, I get just under 2 hours of use on them. For a long night hog hunting. You’ll be practicing a lot of battery discipline and I would put money on the fact that a lot of owners will go through a lot of batteries (likely to become waste in the woods) because it takes too long to shut it off. You have to hold the power button for nearly 8 seconds to turn it off. It says five, but that’s five once you get to the count down. So 3 seconds on a long press to get to the 5 second countdown to shut off. Honestly Burris, we expect you to make quality products and to be pragmatic in your approach. You missed the boat on this product and should have stuck with the monocular and scope until this one was better thought out. I will likely look to return this for something I can put to use and suffer the reduction in image quality.
Date published: 2021-03-20
Rated 5 out of 5 by from Tons of features - outstanding handheld thermal! I've been using the 35mm version for a couple weeks now and the video quality is outstanding! The image is clear enough to see individual tree trunks at 800 yards and animals are sharp and crisp. The ability to control it from my phone is $$$ so I'm night blind in one eye and it makes it much more user friendly. I really want to try this with blood tracking because you can see the thermal signature from hoof prints several minutes after an animal has passed by. I can only image how easy it would be to track an animal shot while bowhunting!
Date published: 2021-01-13
Rated 5 out of 5 by from Like freaking magic! I don't know how this works - just adding a thermal onto the end of a scope - but it does! I shot a couple hogs with this setup and I was able to place the bullet right in the skull at night for an instant, humane kill. The definition was easily clear enough to place shots exactly where in the vitals you need and the color palettes make animals stand out clear as day - even if its in the middle of the night.
Date published: 2021-01-13
Rated 5 out of 5 by from BEST BANG FOR YOUR BUCK - HOT TRACK for the WIN! I had a chance to test out the Burris Thermal Riflescope at a range next to a pile of other thermal scopes (Pulsar, ATN, etc). The BTR outperformed all the other products in terms of refresh rate and ease of use. It was right at the top level of image quality and it had features that I wouldn't hunt without like HOT TRACK. I had my mindset on Burris and then I found out the price point, I can practically buy two of these for one of any other lower-performing competitor.
Date published: 2021-01-13
Rated 5 out of 5 by from Easy to use, crystal clear thermal for night I tried this on hogs down in Texas and killed my first wild hogs on a pitch black moonless night with this thermal scope. Accurate and easy to use would be the best way to describe this thermal scope. The different color palettes really made them stand out making them easy to target and shoot.
Date published: 2021-01-13
Rated 5 out of 5 by from Burris BTS 50 I purchased the BTS 50 looking to get into the night hunting game. I wasn’t totally sure what to expect as most of my buddies are using night vision scope and recommended I go thermal. Pros: - Image clarity is amazing. I believe I can see more detail through the scope at night than with my eyesight during the day. I can’t imagine the clarity being better, especially in this price line. - One scroll button controls everything. This is a great feature, it’s simple and fast. - Rechargeable batteries. I picked up a couple additional 3200 mAh 1850 batteries for my bag and I can run the scope for 5+ hrs. In fact I haven’t had one go less than 60% before I put it on the charger that is included. - I love been running black hot as it is the dimmest palette setting. It’s what I’ve gotten used to but also best for limiting the strain on your eye. The other palettes are good for day use as well, they’re just bright at night. TIP: Keep both eyes open especially at night while looking through the scope. Intel my buddies to do this and they say it makes a big difference, it’s something I picked up in the military and have always done. Cons: - No internal video recording. I contacted Burris and they sent me a link to a MDVR that will record. There are actually pros to this as well, my buddy can hold the MDVR as I scan and also watch or if your eye needs a break you can scan and bier through the MDVR. It’s a con because it’s an additional $200 you will need to spend. -No rangefinder or bullet compensation. This hasn’t been an issue for me yet l, but I’ve been familiar with the places I’ve been hunting so I generally know the range of my target. Depth perception is different through a thermal so this could be an issue at a new place. - No scope cover. I wish I could purchase a neoprene cover for the scope to protect it while mounted on my rifle.
Date published: 2022-03-14
Rated 5 out of 5 by from BEST HANDHELD THERMAL DEVICE ON THE MARKET I tried the Burris handheld at a range next to a pile of other handheld thermals (Pulsar, ATN, etc). The BTH had the best image quality, it was the easiest to use, it had the fastest refresh rates (instant) and surprise surprise it was nearly half the price of all the others! It was really cool to be able to control the thermal unit from my phone using the app, that also made recording a breeze!
Date published: 2021-01-13
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Where can I order an extended bolt action rifle scope mount for a Burris BTS 50 Thermal?  There numerous pictures of such a mount.

Asked by: Jamesfromlakegeneva
Shoot an email over to our customer service team and we'll figure something out:
Answered by: Burris Support
Date published: 2022-07-19

BTS35 - When looking for extra batteries if find the 18650 in several amp discharge outputs 5 amp up to 30 Amps. To clarify I am not ask about Capacity in mAh. In addition can the BTS35 us an external power supply (link to recommended battery pack)?

Asked by: Tommyd
It very likely wont matter much, as the mAh rating is solely for determining how often you will have to recharge your battery. The higher the mAh rating, the longer the run time between charges, generally speaking.
Answered by: Burris Support
Date published: 2022-07-13

I’m interested in the thermal clip on. Is there a recommended scope power range that the clip on works best with? My AR has a 6x-18x scope. Would this be compatible? 

Asked by: Drfletch
There isn't a recommended power range really. Your 6-18 would work just fine.
Answered by: Burris Support
Date published: 2022-07-11

can you recommend an external battery pack for the BTC50? Thank you

Asked by: GDRR
Sightmark SM28003 Quick Detach Battery Pack
Answered by: CaptNightForce
Date published: 2022-06-07

Can you recommend an external battery pack for the BTH 35 as an alternative to the TNVC TRB (don't need a Picatinny rail mount).

Asked by: Markv
You can use pretty much any external battery pack. We've tried things like this with success:
Answered by: Burris Support
Date published: 2022-05-27

How do I use an external battery pack with the BTS 50 thermal scope? I only see the 4-pin slot.

Asked by: EM11
Allow me to expand on the vague answer. Plug in the provided video cable (4 pin) to the unit and the USB end into a USB power bank. Search the Interweb for a power bank that attaches to a picatinny rail. Hope that helps.
Answered by: CaptNightForce
Date published: 2022-05-22

After I sighted in my BTS35 the reticle is no longer in the center of the picture. Did I do something wrong?

Asked by: Sic22
Due to it being a digital zeroing on essentially a camera screen, you can end up with this happening. It's normal in thermal scopes since they don't use an optical system like a traditional scope.
Answered by: Burris Support
Date published: 2022-04-01

Hi, Is the scope capable of being programmed with the type of round you are shooting? Can you add weather data and the bullet travel is auto calculated?

Asked by: InTuer2
There is not a ballistic calculator feature in this scope.
Answered by: Burris Support
Date published: 2022-02-22
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