The ATN TICO LTV 640 25mm thermal clip-on is a lightweight thermal imaging device built to work alongside your existing rifle scope or spotting optic without replacing it. Unlike dedicated thermal scopes that demand a complete refit, this clip-on mounts in front of your current glass, giving you real-time thermal overlay capability while preserving your zero and familiar scope setup. It's engineered for hunters and long-range shooters who want thermal detection at night or in low-visibility conditions without the hassle of swapping equipment between shots.

The 640 25mm configuration delivers a solid balance of thermal resolution and field of view, powered by a 12-micron sensor and 60 Hz refresh rate that keeps moving targets clear and your aim true. Weight and bulk matter in the field—this is one of the lighter thermal clip-ons available, so mounting it won't unbalance your rifle or slow you down during a stalk. The battery is user-replaceable and rechargeable, so you're never stuck waiting for a repair; swap in a fresh 18650 cell and keep hunting. Controls are intuitive enough that you won't waste time fumbling in the dark, and the device works standalone as a spotting monocular too, making it useful for glassing before you ever shouldered the gun.

Setup is straightforward thanks to the included Scope Mounting System adapters and quick-detach mount, or use the Picatinny rail mount with riser if that fits your rig better. Everything ships with lens caps, a soft case, cleaning kit, batteries, charger, and an allen wrench—you're ready to deploy out of the box. Whether you're running night hunts, scanning for hogs, or need a thermal asset for backcountry security, the TICO LTV 640 25mm bridges the gap between your daytime optic and thermal capability without the cost or complexity of a full thermal scope swap.