The best thermal clip on scope is the one that lets you keep the day scope you already trust and just add heat vision in front of it. That is exactly what the ATN TICO 6 384x288 1-12x does. You clip it onto the front of your existing rifle scope, keep your same zero, and turn a daytime setup into a night-capable one in under a minute. No second rifle, no re-zeroing, no learning a whole new reticle. For hunters who already have a good day optic and don't want to buy a dedicated thermal weapon sight, a clip-on is the smart move. Below are our ATN picks, how they compare, and how to pick the one that fits your rifle and your range.
The best thermal clip on scope for most hunters is the ATN TICO 6 384x288, because it mounts in front of your existing day scope, holds your zero, and doubles as a handheld monocular. Step up to the TICO 6 640x512 for longer reach and a sharper picture at distance.
Quick answerBest overall clip-on: ATN TICO 6 384x288 1-12x — keeps your day scope, holds zero, and pulls double duty as a handheld scanner.
Best for long range: ATN TICO 6 640x512 1-15x — the higher-resolution sensor and 50mm lens reach out past 3,000m of detection.
Best for going light: ATN TICO 6 384x288 1-12x again — at just over a pound it barely changes how your rifle carries.
Why ATN's 6th-gen clip-ons make sense right now
A clip-on is a thermal front attachment: it sits ahead of your regular day scope and sends a thermal picture through it, so you aim with the same reticle and the same zero you already know. ATN's 6th-generation thermal clip-ons lean into that idea hard. Both the TICO 6 384 and the TICO 6 640 mount with a Quick Detach ring, run SharpIR AI image enhancement to clean up the picture, and refresh at 50 Hz so a coyote crossing at speed stays smooth instead of smearing. What really sets the TICO 6 apart is that the eyepiece is removable — pop it off and it clips onto your rifle, leave it on and you carry it in your hand as a thermal monocular to scan first, then mount only when you have something to shoot. Add IP67 waterproofing, a full-HD OLED screen, 64 GB of onboard recording, and the ATN Connect 6 app, and you have one device doing the job of two. We only consider this current 6th-gen line here; older ATN clip-ons are not in the running.
Best overall clip-on: ATN TICO 6 384x288
The ATN TICO 6 384x288 1-12x is the clip-on most hunters should start with. It slides onto the front of your day scope with the included Quick Detach mount, so you keep the exact zero you already sighted in — no re-zeroing at the range, no fresh reticle to memorize. The 384x288 sensor gives you a clean, usable thermal picture out to about 2,710m of detection, which covers the vast majority of real hog and predator shots. And because the whole thing weighs just 524 grams, a hair over a pound, your rifle still shoulders and swings the way it always has.
Why the double-duty design matters
Take the eyepiece off and the TICO 6 becomes a handheld thermal monocular. That means you can walk a field line scanning for heat with it in your hand, spot the pig, then clip it to your rifle only when it's time to make the shot. One tool covers scanning and shooting instead of forcing you to buy a separate scanner. A wireless remote comes in the box so you can start Recoil Activated Video or swap palettes without breaking your cheek weld.
Why holding zero is the whole game
The single biggest reason hunters trust a clip-on over a dedicated thermal sight is that it doesn't touch how their rifle shoots. Your day scope stays zeroed exactly where you left it, and the TICO 6 rides in front of it on a repeatable Quick Detach mount that returns to the same spot every time you clip it on. That means you can leave the same gun set up for daylight and, when night falls, snap the thermal on and hunt without a trip back to the range. No second rifle to buy, no separate zero to remember, no second reticle to relearn under pressure. For a lot of hunters that continuity is worth more than any single spec on the box.
Who it's for and who it's not
It's for the hunter who already owns a day scope they like and wants to add thermal without replacing it. It's not the pick if you're chasing the absolute longest shots or want the crispest possible image at extreme distance — that's where the 640 comes in.
Best for long range: ATN TICO 6 640x512
The ATN TICO 6 640x512 1-15x is the pick when your shots stretch out and you want more detail on the far side of the field. The jump from 384x288 to 640x512 means far more dots making up the picture — the same idea as going from standard definition to HD on a TV — so you can push in tighter before the image turns blocky, and you can tell a coyote from a deer at a distance where the smaller sensor just shows a warm blob. Paired with a 50mm lens, detection stretches to about 3,500m.
What you trade for the reach
The 640 is a touch heavier at 564 grams and runs closer to 7 hours on a battery instead of 8, since the bigger sensor and lens ask a little more. For most hunters that's a fair trade for the clearer, longer picture. It's the same clip-on-or-handheld design and the same Quick Detach mount, so everything you like about the 384 carries over.
Who it's for and who it's not
It's for the long-range predator or hog hunter who wants the sharpest thermal image money can buy in a clip-on. It's not for someone counting every gram or every minute of runtime, or who mostly shoots inside a few hundred yards — the 384 does that job for less.
How to choose the right thermal clip on scope
Start with your rifle and your typical range, then work outward. A clip-on lives or dies on whether it holds your day scope's zero and fits your setup, so match the sensor and lens to how far you actually shoot rather than the biggest number on the box.
- Sensor resolution — 640x512 puts more dots in the picture so you can zoom farther before it blurs; 384x288 is lighter, cheaper, and plenty for most shots inside a few hundred yards.
- Thermal sensitivity (NETD) — both TICO 6 models sit at <=18mK, meaning a cleaner picture in humid, foggy, or damp air where warm and cool blur together.
- Detection range — 2,710m on the 384 versus 3,500m on the 640; detection just means you can pick up heat that far, not identify or shoot it, so leave headroom.
- Refresh rate — both run 50 Hz, which keeps a running coyote smooth instead of smeared.
- Weight — a clip-on hangs off the front of your scope, so lighter (the 384) keeps your rifle balanced and pointing naturally.
- Mounting — both include a Quick Detach mount so you can clip on, take the shot, and pull it off without tools.
How we picked these ATN clip-ons
We judged both TICO 6 models against what a clip-on is actually asked to do: hold your day scope's zero, give a clean enough picture at your real shooting distance, and mount and dismount fast in the dark. We weighed sensor resolution, thermal sensitivity (NETD), detection range, refresh rate, and weight against that use, and we only looked at ATN's current 6th-gen line — no discontinued models. The honest trade-off is simple: the 640 sees farther and sharper but costs more, weighs a bit more, and runs a shade shorter per charge, while the 384 is the lighter, more affordable all-rounder that covers most hunts. Neither is the right call if you want a single fixed dedicated thermal weapon sight rather than an attachment. This is an in-house comparison of ATN's own range, not an independent lab test, so check these specs against your rifle and your typical range before you buy.
Frequently Asked Questions
What is a thermal clip on scope?
A thermal clip on scope is a thermal front attachment that mounts ahead of your existing day rifle scope. It projects a thermal image through your day optic, so you aim with the same reticle and the same zero you already use. It lets you turn a daytime rifle into a night-capable one without buying a dedicated thermal weapon sight.
Does a clip-on change my zero?
A well-made clip-on like the ATN TICO 6 is designed to hold your existing zero when mounted correctly on a repeatable Quick Detach mount. You still aim with your day scope's reticle, so your point of impact stays where you sighted it. Always confirm at the range after first mounting, then it repeats consistently.
What is the difference between the TICO 6 384 and the TICO 6 640?
The main difference is the sensor. The TICO 6 640x512 has a higher-resolution sensor and a 50mm lens for a sharper image and longer detection out to about 3,500m. The TICO 6 384x288 has a smaller sensor, detects to about 2,710m, weighs a bit less, and runs a little longer per charge, making it the value all-rounder.
Can the TICO 6 be used as a handheld thermal monocular?
Yes. Both TICO 6 models have a removable eyepiece, so you can take the eyepiece off, hold the unit in your hand, and use it as a thermal monocular to scan for heat. When you spot something, clip it onto your rifle for the shot. That double duty is one of the main reasons hunters choose it.
Is the ATN TICO 6 waterproof?
Yes, both TICO 6 models carry an IP67 rating, meaning they are protected against dust and can handle rain and brief water immersion. That lets you hunt through wet weather without worrying about the electronics. It does not mean you should leave it submerged for long periods.
How long does the TICO 6 battery last?
The TICO 6 384 runs about 8 hours on its replaceable 18650 battery, and the TICO 6 640 runs about 7 hours. Because the battery is replaceable, you can carry a spare and swap it in the field for a longer night out. Actual runtime varies with temperature and how much you record.
Ready to add thermal without giving up the day scope you already trust? The ATN TICO 6 384x288 clips on in seconds, holds your zero, and doubles as a handheld scanner, while the TICO 6 640 reaches farther when your shots stretch out. Compare both, plus mounts and accessories, on the ATN thermal clip-on page and pick the sensor that matches your rifle and your range. It's one of the fastest, lowest-hassle ways to turn a daytime setup into a night-capable one.
Created: July 7, 2026 · 19:22:59 UTC
