I am about to pull the trigger on my first thermal scope. Now that we can hunt coyotes and pigs at night, I'm going to get after them after duck season. I've been looking at an ATN Thor 4 640 2.5-25X. Its going on an AR with an ARP 6.8 barrel on it. Anyone have a better idea? AND is it worth the extra grand over a 384 4.5-18X? Its a lot of money and I don't have any way to compare these things. If I am barking up the wrong tree, please enlighten me. I'm all ears.