A lot of interesting references here: http://www.nyulawglobal.org/globalex/International_Weapons_Law.html http://www.nyulawglobal.org/globalex/International_Wea

A lot of interesting references here: http://www.nyulawglobal.org/globalex/International_Weapons_Law.html http://www.nyulawglobal.org/globalex/International_Weapons_L... Then for the US I'd switch to this: https://www.justice.gov/sites/default/files/usao-me/legacy/2012/06/01/Summary%20of%20Federal%20Firearms%20Laws%20-%202010.pdf https://www.justice.gov/sites/default/files/usao-me/legacy/2... And after that I would probably look through the Federal Register for references to any executive orders concerning the extra-territorial use and possession of firearms by non-law enforcement personnel.