[Lurking Libertarian]

What does the location of the gun manufacturer have to do with the sniper case?

All federal gun control laws apply only to guns which have travelled, or whose component parts have travelled, across a state line.

[elbucko]

All federal gun control laws apply only to guns which have travelled,...

Respectfully, I beg to differ. If Williams had lived in Maine and purchased the weapon from a licensed gun dealer, in Maine, while under a domestic TRO, he still would have committed a federal felony.