Call the ATF?
I am not sure I am brave enough...
I have already called the NZ police no problems there.
Found this:
http://pe.usps.gov/text/imm/immc5_010.htm#ep234390
540 Munitions and Related Technical Data
541 Licensing Requirements
541.1 Individual Licenses
541.11 Exporting Munitions
The exportation of certain munitions (arms or implements of war, parts or components thereof, and related technical data) requires an individual license issued by the Office of Munitions Control, Department of State. Munitions subject to license include the following:
1. Nonautomatic and semiautomatic rifles, carbines, revolvers, and pistols, regardless of caliber (except those of .50 caliber or less manufactured prior to 1898).
2. Shotguns with barrels less than 18 inches in length.
3. All machine guns, submachine guns, machine pistols, and fully automatic rifles.
541.12 Obtaining Information
The sender may obtain information as to the applicability of the State Department requirements and how to apply for an individual license from:
OFFICE OF DEFENSE TRADE CONTROL
ARMS LICENSING DIVISION
US DEPARTMENT OF STATE
PM/DTC SA–6 RM 200
WASHINGTON DC 20522–0602
541.2 Mail Exempt From Licensing
541.21 Technical Data
541.211 Types of Technical Data Exempt From Licensing
Technical data that have been published or are otherwise exempt from licensing under Title 22, Code of Federal Regulations, part 125, do not require a State Department license for exportation. The sender must mark the wrapper “22 CFR 125.11…APPLICABLE,” identifying the specific subsection under which the exemption is claimed.
541.212 Prohibited Exports Under This Exemption
Exports under this exemption may not be made for items destined to or originating in:
Albania
Bulgaria
Cambodia
China
Cuba
Czech Republic
Estonia
Hungary
Korea, Democratic People’s
Republic of (North)
Latvia
Lithuania
Mongolia
Poland
Romania
Russia
Slovak Republic
(Slovakia)
Vietnam
541.22 Government Shipments
Shipments mailed by any U.S. government agency do not require an individual license from the Department of State. The sender must mark the wrapper 22 CFR 125.10 APPLICABLE.
Cameron