ATN ThOR 4 640 2.5-25x vs ATN ThOR 5 640 3-24x

The ATN ThOR 4 640 2.5-25x and ATN ThOR 5 640 3-24x are both popular choices in the thermal rifle scope category, commonly used for predator hunting, hog control, and long-range target acquisition. Both are from ATN, so this comparison comes down to specific model differences rather than brand philosophy. With a price difference of $1,304, the value proposition matters. Below we break down the key specs, features, and real-world differences to help you decide which one fits your needs and budget.