AGM Varmint V2 LRF 50-640 Thermal Imaging Riflescope

The rangefinder solves a problem specific to digital optics.

Look through a traditional glass scope, and your brain gets depth cues from focus, parallax, and the way the image falls off. Look through a thermal scope, and you get a flat digital display with none of that. Everything sits on one plane.

The practical consequence is that distance estimation through a thermal optic is worse than distance estimation with the naked eye, and both are poor past 200 m in the dark. Hunters compensate by carrying a separate rangefinder, which means taking a hand off the rifle at the moment you most want both on it.

AGM built a 600 m laser into the Varmint V2 body, accurate to ±1 m at 905 nm, Class 1. Press the button, get a confirmed number, and the onboard ballistic calculator converts it to a corrected aim point using your stored profile.

600 m is shorter than the 1,000 m units on the Rattler V3 and Adder V2 ranges. In practice, that gap matters less than it reads because laser return off a soft animal target degrades well before the rated maximum on any of them. 600 m of reliable ranging covers the overwhelming majority of ethical shots.

The 640 sensor and sub-20 mK sensitivity

A 640×512 detector at 12 micron pixel pitch, running at 50 Hz, rated below 20 mK, feeding a 1024×768 OLED display.

The 640 resolution is what separates this model from our Varmint V2 LRF 35-384 at €2,750.00. Double the pixels on target means the difference between reading a shape and reading posture and outline, which is what turns detection into identification at a distance.

Sub-20 mK is a solid sensitivity figure. It holds a workable image through moderate fog and drizzle. However, it does not match the sub-15 mK sensitivity of the Rattler V3 and Adder V2 ranges, and in the worst low-contrast conditions, those models will hold an outline longer.

The 50 mm objective gathers more infrared energy than the 35 mm models, extending the usable identification range and giving the detector more signal at any given distance.

Interface and field features

Ten reticle types in four colors, switchable off. Four palettes: Black Hot, White Hot, Red Hot, and Fusion. Two scene modes, Jungle and Recognition, which adjust processing for cluttered versus open backgrounds.

Picture-in-picture holds your main view while displaying a zoomed inset, which pairs naturally with rangefinding: keep situational awareness while confirming the target. Highest temperature spot tracking flags the hottest point in the frame, useful for picking an animal out of background clutter.

Digital boresight adjustment is 0.13 mil or 0.44 MOA per click. Recoil-activated video with sound records the shot without you having to touch a button.

Digital zoom runs 1×, 2×, 4×, and 8× on top of base optical magnification.

Power, storage, and build

A single removable 18650 rechargeable battery. AGM specifies 5 to 6 hours on the 35-384; confirm the figure for this model against the spec sheet.

The important detail is that the 18650 is non-proprietary. These are standard cells available anywhere, unlike the manufacturer-specific packs used across most of the thermal market. Spares are cheap, and you are not dependent on one supplier three years from now. USB external power is supported.

The internal storage is 16 GB, which is a quarter of the 64 GB available in the Rattler V3 and Adder V2 ranges. Export regularly if you record heavily.

IP67 rated, drop tested to 1.5 m. An American-made ADM quick-detach mount is included, which holds zero across detach and reattach cycles.

Compare against the Clarion 640 at €3,200.00 if optical flexibility matters more than laser ranging, or see the full thermal riflescope range and our thermal scope buying guide.

Technical specifications

FAQ

How far does the Varmint V2 rangefinder reach?

Up to 600 m with ±1 m accuracy, using a 905 nm Class 1 laser. That is shorter than the 1,000 m units on the Rattler V3 and Adder V2 ranges, but laser return off a soft animal target degrades before the rated maximum on any scope, so 600 m of reliable ranging covers the large majority of ethical shots.

What is the difference between the Varmint LRF TS50-640 and the Varmint V2 LRF 50-640?

The V2 is the current generation and replaced the TS. AGM upgraded the sensor to a sub-20 mK 12-micron detector, added an onboard ballistic calculator, redesigned the user interface, added customisable image settings, and added recoil-activated video with sound. The integrated laser rangefinder, compact housing, and removable 18650 battery were carried over from the original.

What battery does the AGM Varmint V2 use?

A single removable 18650 rechargeable cell. The important detail is that it is non-proprietary: 18650 is a standard format available from any battery supplier, so spares are cheap and you are not tied to one manufacturer for replacements years down the line. USB external power is also supported.

Should I buy the Varmint V2 LRF 50-640 or the Clarion 640?

The Varmint at €3,200.00 gives you a 600 m laser rangefinder and ballistic calculator with a single 50 mm lens. The Clarion 640 at €3,200.00 gives you two mechanically switching lenses but only a stadiometric rangefinder. Buy the Varmint if your distances vary and your terrain does not. Buy the Clarion if the reverse is true.

What mount comes with the Varmint V2 LRF 50-640?

An American-made ADM quick-detach mount is included. Quick-detach matters more than it sounds: it lets you remove the scope for transport or swap between rifles and return it to the same zero, provided the mount and rail are both in good condition.