Thermal scopes / ATNDiscontinued
ATN ThOR LT 320 4-8x
320×240 · 12 µm · 35 mm · 10 h · MSRP $1,799
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Coyote at 100 yd
18 px tall at the shoulder
Coyote at 200 yd
9 px tall at the shoulder
Coyote at 300 yd
6 px tall at the shoulder
Identify a coyote out to
Identification distance
Our estimate of how far away you can tell a coyote from a fox or a dog. It is calculated from the lens and sensor, assuming good conditions.
~150 yd
The same as 92 of the 252 other current thermal scopes we track; 95 reach farther.
Ground across the screen at 100 yd
Field width
How many feet of ground fill the screen at 100 yards. Wider makes scanning faster; narrower usually means more detail on the animal.
33 ft
Wider than 6% of the 261 current thermal scopes we track (tied for #241).
Mounts that fit
How it mounts (ATN): Round tube for scope rings, 30 mm. In the box: No mount; spec table: "30 mm Standard Rings (not included)". ""can be mounted using 30 mm mounting rings (not included)"; "ATN recommends low to medium profile rings to get the ThOR LT as close to the barrel as possible"." Source
Maker says it fits
| Mount | Who says so | Tube center above the rail (calculated) |
|---|---|---|
| ATN Quick Detach Scope MountScope mount, QD · $99 | "Perfect for X-Sight 4K Series, ThOR 4 Series or ThOR LT Series" (ThOR LT series named in the copy) | ATN does not publish a height for this mount |
Interfaces match (calculated)
ATN's published mounting interface meets these mounts'. That says the parts connect; it does not check eye relief, the tube length free for rings, or barrel clearance, and no maker has named the pairing.
| Mount | Why it matches | Tube center above the rail (calculated) |
|---|---|---|
| AGM AGM-2116 ADM QR Mount with 30mm RingsDevice mount, QD · $295 | 30 mm rings; ATN states a 30 mm tube | AGM gives a centerline height without saying where it is measured from |
| ATN Dual Cantilever 30 mm QD Mount for ThOR 6Scope mount, QD · $199 | 30 mm rings; ATN states a 30 mm tube | ATN does not publish a height for this mount |
| Bobro Engineering Pulsar Thermion QD MountScope mount, QD · $325 | 30 mm rings; ATN states a 30 mm tube | Bobro Engineering gives a centerline height without saying where it is measured from |
| Burris AR-P.E.P.R. QD Scope Mount 30mmScope mount, QD · $120 | 30 mm rings; ATN states a 30 mm tube | 1.6 in (40.6 mm) |
| Burris AR-Signature QD P.E.P.R. Mount 30mmScope mount, QD | 30 mm rings; ATN states a 30 mm tube | 1.5 in (38.1 mm) |
| Monstrum Deadlock Pro Hypergrip QD Mount, 30 mm, 2 in OffsetScope mount, QD · $45 | 30 mm rings; ATN states a 30 mm tube | Monstrum gives a centerline height without saying where it is measured from |
Show all 24 interface matches
| Monstrum Hypergrip Quick Release Cantilever Scope Mount 30mmScope mount, QD | 30 mm rings; ATN states a 30 mm tube | Monstrum does not publish a height for this mount |
| Nocpix Quick Release Picatinny Mount (30 mm)Scope mount, QD | 30 mm rings; ATN states a 30 mm tube | Nocpix does not publish a height for this mount |
| OneLeaf OLM3022 Tactical 30 mm Fixed Cantilever MountScope mount | 30 mm rings; ATN states a 30 mm tube | OneLeaf does not publish a height for this mount |
| OneLeaf OLSM30150 30 mm Cantilever Mount, 2 in OffsetScope mount | 30 mm rings; ATN states a 30 mm tube | 1.4 in (36 mm) |
| Sightmark Tactical 30mm Fixed Cantilever MountScope mount | 30 mm rings; ATN states a 30 mm tube | Sightmark gives a centerline height without saying where it is measured from |
| Sightmark Tactical 30mm/1in Fixed Cantilever Mount w/ 20MOAScope mount | 30 mm rings; ATN states a 30 mm tube | Sightmark gives a centerline height without saying where it is measured from |
| Sightmark Tactical 30mm/1in LQD Cantilever MountScope mount, QD | 30 mm rings; ATN states a 30 mm tube | Sightmark gives a centerline height without saying where it is measured from |
| Vortex Precision Extended Cantilever 30mm Mount (20 MOA)Scope mount | 30 mm rings; ATN states a 30 mm tube | Not calculated; Vortex's height reference: from the base |
| Vortex Sport Cantilever 30mm MountScope mount | 30 mm rings; ATN states a 30 mm tube | Vortex gives a centerline height without saying where it is measured from |
| Warne QD XSKEL 30mm Cantilever Mount (Black)Scope mount, QD | 30 mm rings; ATN states a 30 mm tube | 1.4 in (36.3 mm) |
| Warne Maxima 30mm QD Medium Rings (Matte)Rings, QD | 30 mm rings; ATN states a 30 mm tube | 1 in (24.5 mm) |
| Warne Mountain Tech 30mm Medium Rings (Matte)Rings | 30 mm rings; ATN states a 30 mm tube | 1 in (25.1 mm) |
| Kill Light 90 Degree Offset Rapid MountLight mount | Clamps a 30 mm scope tube; ATN states a 30 mm tube | Not an optic mount |
| Kill Light Ring to Rail Mount, 30mmLight mount | Clamps a 30 mm scope tube; ATN states a 30 mm tube | Not an optic mount |
| NightSnipe Picatinny Rail Quick Release Adjustable Mount KitLight mount, QD | Clamps a 30 mm scope tube; ATN states a 30 mm tube | Not an optic mount |
| Sniper Hog Lights Predator Pro MountLight mount, QD | Clamps a 30 mm scope tube; ATN states a 30 mm tube | Not an optic mount |
| Sniper Hog Lights Scope Mount with RailLight mount | Clamps a 30 mm scope tube; ATN states a 30 mm tube | Not an optic mount |
| Sniper Hog Lights Universal Scope MountLight mount | Clamps a 30 mm scope tube; ATN states a 30 mm tube | Not an optic mount |
Tube center above the rail is calculated only for rings on a round tube, from the mount maker's ring height where it says the height is measured from the rail (adding half the tube when it measures to the bottom of the ring). It is where the tube's center sits, not the lens axis of a thermal, which no maker publishes. All scope mounts.
Specs
| Sensor | |
|---|---|
| Resolution Sensor resolution How many heat-reading pixels the sensor has, such as 384 × 288 or 640 × 512. More pixels show more detail, but the lens matters just as much. | 320 × 240 |
| Pixel pitch Pixel pitch The size of each sensor pixel, in microns. Smaller pixels mean more magnification from the same lens. Most current thermals use 12 microns. | 12 µm |
| NETD (maker’s claim) NETD (thermal sensitivity) How small a temperature difference the sensor can show. Lower is better, but brands measure it differently, so numbers from two makers are not a fair comparison. | — |
| Refresh rate Refresh rate How many times per second the picture updates. 50 or 60 times a second looks smooth; lower rates stutter when you pan or a coyote runs. | 60 Hz |
| Optics | |
| Lens Focal length The lens number in millimeters, like 35 mm or 50 mm. A longer lens puts more pixels on a distant animal but shows a narrower slice of ground. | 35 mm |
| Base magnification Base magnification How much bigger things look before any digital zoom, like 2× or 4×. Higher is not automatically better: it narrows your view. | 4× |
| Max digital zoom Digital zoom Electronic enlarging of the picture. It makes the animal look bigger but adds no detail; past about 2× to 4× the image gets blocky. | 8× |
| Field of view Field of view How wide a view you get, in degrees. A wide view makes scanning for animals faster; a narrow one usually means more magnification. | 6.3° × 4.7°Detection is the manual's "Human Detection Range" (the archived page prints the same number with no unit). |
| Detection range (maker’s claim) Detection range The maker's figure for how far away a warm object shows up as a dot or two. It is far longer than the distance you can tell what the animal is. | 1,651 yd |
| Display | |
| Display Display resolution How many pixels the small screen inside the eyepiece has. A sharp screen looks cleaner but cannot add detail the sensor did not capture. | micro display (type not published) 1280 × 720 |
| Power | |
| Battery | internal Li-ion |
| Runtime Battery life (runtime) How many hours the device runs on a charge, by the maker's test. Real runtime is shorter in the cold and with Wi-Fi, recording or the rangefinder on. | 10 h |
| Features | |
| Rangefinder Laser rangefinder A built-in laser that measures how far away the animal is. The rated range is for big, reflective targets; expect much less on a coyote. | No |
| Storage Onboard recording (storage) Built-in memory that records photos and video of what you see. Useful for reviewing shots and sharing hunts; listed in gigabytes. | — |
| Wi-Fi / app Wi-Fi and app A wireless link to a phone app for live viewing, downloading videos, changing settings and updating the device's software. | No |
| Riflescope | |
| Eye relief Eye relief How far your eye sits behind the eyepiece and still sees the full picture. On a rifle scope, more distance keeps the scope off your face under recoil. | 90 mm |
| Recoil rating Recoil rating How much rifle recoil the maker says the scope can take and still work and hold zero. Makers state it in different units, so compare carefully. | — |
| Mount Mount How the scope attaches to the rifle: standard rings or a rail clamp, fixed or quick-detach. A good mount does more to hold zero than anything else. | 30 mm standard rings (not included) |
| Ballistic calculator Ballistic calculator Software in the scope that moves the aiming point for distance, using your bullet's data and the range to the animal. | No |
| Zero profiles Zero profiles Saved sight settings for different rifles or loads. Switch profiles instead of re-zeroing when you move the scope or change ammunition. | — |
| Build | |
| Weight Weight How heavy the device is. Check whether the maker weighed it with or without the battery, because brands do it differently. | 22.9 oz |
| Water rating IP rating (water rating) A two-part code for how well the device keeps out dust and water. IP67 means dust-tight and survives a short dunk; an X means not tested. | Not rated |
| Operating temp Operating temperature The temperature range the maker says the device will work in. Batteries lose much of their runtime well before the low end of that range. | -18°F to 118°F |
| Buying | |
| Warranty Warranty How long the maker promises to repair or replace a faulty unit. Check whether it needs registration and whether it passes to a second owner. | 3 years |
| US price US price The price we found for the unit in the US, with where it came from and when. Prices change often, so treat it as a snapshot. | Discontinued |
| MSRP MSRP The maker's suggested retail price in the US: the list price, before any sale. Useful for seeing how good a deal really is. | $1,799Last regular price on atncorp.com, shown struck through beside a $1,549 sale price (Wayback Machine capture, December 11, 2023) |
Source: ATN ThOR LT manual (PDF, spec table for ThOR LT 160 and 320), ATN ThOR LT 320 4-8x product page (archived), ATN previously produced items list (ThOR LT 320).
Added October 12, 2026 · Specs last checked October 12, 2026
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Current models to compare
In production now, near the ThOR LT 320 4-8x's last price.
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Other ATN ThOR LT models
Other sizes and versions in the same line.
- ATN ThOR LT 160 3-6xMSRP $899
160×120 · ID ~55 yd · 43 ft wide at 100 yd · discontinued
Compare with the ThOR LT 320 4-8x → - ATN ThOR LT 160 4-8xMSRP $1,099
160×120 · ID ~75 yd · 33 ft wide at 100 yd · discontinued
Compare with the ThOR LT 320 4-8x → - ATN ThOR LT 320 2-4x$1,699
320×240 · ID ~80 yd · 61 ft wide at 100 yd · discontinued
Compare with the ThOR LT 320 4-8x → - ATN ThOR LT 320 3-6x$1,899
320×240 · ID ~105 yd · 46 ft wide at 100 yd · discontinued
Compare with the ThOR LT 320 4-8x → - ATN ThOR LT 320 5-10x$2,499
320×240 · ID ~210 yd · 23 ft wide at 100 yd · discontinued
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