• Hunters pursuing coyotes, hogs or predators in open country at 400–800 yards
• Professional wildlife management, security or search‑and‑rescue where maximum detection range is required
• Users who want the sharpest imaging and longest reach available in a rifle‑mounted thermal scope

• Dense woods or short‑range engagements where a wider field of view is beneficial
• Shooters sensitive to weight and balance; the 50 mm lens adds mass
• Budget‑restricted hunters—the 50‑640 is the most expensive RattlerV2

The 50‑640 sits at the top of the RattlerV2 lineup. It offers a 2.5× base magnification and detection rated up to ~2,600 yards—significantly farther than the 35‑mm models. In exchange, it has a narrower field of view and weighs slightly more. Those who need a wider view may prefer the 35‑640, while those on a tighter budget might opt for the 35‑384.

Compared to the 35‑640, the 50‑640 increases optical magnification from 2× to 2.5× and extends detection range from 1,800 yards to 2,600 yards, but narrows the field of view (8.8° vs 12.5°) and adds weight.

Hunters using the 50‑640 appreciate being able to pick up heat signatures well beyond ~1 mile. The 640×512 sensor delivers crisp images, and the 2.5× base magnification helps with target discrimination at longer ranges. Digital zoom up to 20× is available, but most find the sweet spot around 8–12×.

Battery life is around 9 hours, and a spare battery is included. Shot‑activated recording, multiple reticle choices, zero profiles and picture‑in‑picture make the scope versatile. However, the larger lens does add weight, so a sturdy mount and balanced rifle are important.

• 640×512 12 µm sensor with <20 mK sensitivity
• 50 mm f/1.0 lens; 2.5× base magnification with up to 20× digital zoom
• Detection range ~2,600 yards; field of view 8.8° × 7.0°
• Rechargeable NE‑4400 battery provides ≈9 hours (two included)
• Shot‑activated recording, multiple reticles and zero profiles
• Picture‑in‑picture, multiple color palettes and Wi‑Fi streaming
• Rugged IP67 waterproof housing with 5‑year warranty

The RattlerV2 50‑640 is AGM’s most capable rifle‑mounted thermal optic. Its 50 mm f/1.0 lens and 640×512 sensor deliver a 2.5× base magnification and allow detection of human‑sized targets out to about 2,600 yards. This makes it the preferred choice for hunters and professional users operating in wide‑open terrain. The larger lens gathers more thermal energy, producing sharp images even at extended distances, while a <20 mK NETD ensures subtle temperature differences are visible. A rechargeable NE‑4400 battery provides around 9 hours of runtime and is quickly replaceable; a spare battery is included.

The scope features shot‑activated recording, multiple reticles and zero profiles, picture‑in‑picture, adjustable color palettes and Wi‑Fi streaming via the AGM app. Although heavier than 35 mm models, the 50‑640 remains manageable with a quality mount. For shooters needing the utmost reach from a thermal scope, this is the model of choice.

• Detector: 12 µm VOx uncooled FPA, 640×512 resolution, NETD <20 mK
• Lens system: 50 mm f/1.0; field of view 8.8° × 7.0°
• Optical magnification: 2.5× (digital zoom 2.5–20×)
• Detection range: ≈2,600 yards (human‑sized target)
• Battery: one NE‑4400 rechargeable; ≈9 h runtime; quick swap
• Storage: 16 GB internal memory; shot‑activated recording
• Reticles: ten styles; multiple zero profiles; picture‑in‑picture
• Connectivity: Wi‑Fi hotspot; USB‑C external power
• Weight: ~0.53 kg; IP67 waterproof
• Warranty: 5 years (optic); 3 years (battery)