The AR-15 Rifle CAN NOT be imported to the US.

[G.Mitchell]

I assume this is the same for FX9, Stag-10, ATRS modern sporter, etc? Is it AR pattern or specifically AR15? All modern semi auto rifles? Specific features?

 

[IRUNGUNS]

Yes, unless IRUNGUNS was the original importer, most of those are not importable to the US.