Quote Originally Posted by Hannu View Post
Thank you for info !
I called to Denver airport customs office and they told me to fill ATF form #6. But, as far as I can see, that form is only about firearms and ammunition...
Is there something I do not understand ?
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i doubt they know anything. you shouldn't have any worries over a scope. they are made all over the place and taken everywhere for hunting.

now if it was a US military laser designator, then they might raise an eyebrow.