Angry Stag thermal scopes are the product of years of our engineering development with the intent of building the best image quality scopes at the lowest price with advanced features. The result is a State of the Art product with best in class image quality, all the usual features, and a few new ones. What differentiates Angry Stag scopes from others is not just all the usual features at a price point well below others, but we developed two new features; TriMode™ and ThermaLoc™, both patent pending features. TriMode™ allows the scope to be used as a riflescope, a clip-on or a hand held, for ultimate flexibility with no added cost. ThermaLoc™ allows the user to lock onto a target’s temperature, select a target color, and never lose that target, making the scope usable day or night. And, all Angry Stag scopes are Made in the USA.