AGM Secutor LRF-C 75-640

The AGM Secutor LRF-C 75-640 is a clip-on thermal imaging system with a larger 75mm objective, built for shooters who want to add thermal reach to a day optic they already run. It carries the same built-in precision laser rangefinder and quick conversion design as the rest of the LRF-C line, with a bigger lens for more light and longer range. For the hunter who prizes flexibility and reach, the AGM Secutor LRF-C 75-640 is a standout.

What It Is and Who It Is For

This clip-on is for the shooter who has a day scope dialed in and wants thermal capability at greater distance without a dedicated night optic. It installs in front of rifle scopes with magnification up to 10X, so your day setup remains ready for medium range engagements.

The larger 75mm objective gathers more infrared light than smaller clip-ons, extending the range at which you can detect and range a target. Built by AGM, the Secutor LRF-C 75-640 keeps operation simple with an intuitive interface and ergonomic controls.

Key Features of the AGM Secutor LRF-C 75-640

• Larger 75mm objective for extended thermal detection and ranging.
• Clip-on design that converts a day optic into a thermal device fast.
• Built-in precision laser rangefinder with in-scope readout.
• Highly sensitive 12 micron thermal detector with a 1024 x 768 OLED monitor.
• Mounts in front of rifle scopes with magnification up to 10X.
• Four replaceable Li-Ion batteries for more than 6 hours of runtime.

Specifications Worth Knowing

The larger 75mm objective is the defining spec, feeding the highly sensitive 12 micron detector more light for a brighter image at range. On the AGM Secutor LRF-C 75-640, that detector works with a 1024 x 768 OLED monitor to hold a clear picture even in the harshest conditions.

The built-in laser rangefinder measures the exact distance to the target and shows it right in the scope’s monitor, so you range and hold without breaking position. Four replaceable Li-Ion batteries provide more than 6 hours of continuous use, and an external 5V pack connects by USB to keep you running longer.

Practical Use, Care, and Compatibility

Clipping in front of your day scope, this system preserves your zero while adding thermal reach whenever you need it. Keep the large objective capped when idle and clean the optics only with dedicated tools so the coatings and detector window stay protected.

It works best with quality day scopes up to 10X on capable AR platforms and precision bolt rifles. To match the AGM Secutor LRF-C 75-640 with the right mount and a solid day optic, browse our full optics collection.

The Long Reach Clip-On

Stepping up to the 75mm objective turns a versatile clip-on into a long reach one. The larger lens gathers more infrared light, so you can detect and range targets farther out while still running the day scope you already trust. That combination of reach and flexibility is hard to match with any single dedicated optic.

Like the rest of the line, it clips in front of your existing scope with no need to rezero, and the built in rangefinder feeds distances straight into your field of view. The sensitive 12 micron detector and OLED monitor hold a clear picture in tough conditions, so the bigger lens actually delivers on its promise.

If your hunting or professional work involves longer distances after dark, this is the clip-on to choose. It brings extended thermal reach to the gear you already own, which is exactly what a serious shooter wants from a night upgrade.

Check that the clip-on mounts square and that your day scope tracks true through it, carry spare Li-Ion batteries and the external pack for long nights, and this big objective unit will add real thermal reach to the optic you already trust.

Extend your reach with the AGM Secutor LRF-C 75-640, a big objective clip-on with ranging built in. These optics ship direct where state and local law allows. Ships direct to your door, no FFL required.