Concerning the export of certain items from Canada ,in particular firearms or firearms related goods:
I am from Canada and have had to check all this out a couple of weeks ago about shipping to Europe.
This is my understanding from the Canadian perspective:
What follows is from the Government of Canada website:
"Exporters should be aware of Canada's Export Control List (ECL)
Firearms ,their components and certain accessories are controlled under ECL Item 2-1 and 2-2...Ammunition and related items are controlled under ECL 2-3.......firearms-related goods and technology may be controlled elsewhere in group 2
The description for firearms related goods include silencers, special gun mountings, clips(magazines),weapons sights (Laser,Holographic,Red dot Reticle, rifle scopes and Thermal imaging/night vision scopes) and flash suppressors.
Exporting non-restricted or restricted items to the US may not always require an Export permit but usually requires a US import permit.
From Canada to anywhere else in the world an export permit from Global affairs Canada is required and possibly an import permit where it is being sent.Permits Form EXT 1042for firearms .....Form 1042-1 for ammunition ....Form 1042-2 for firearms-related goods (magazines, scopes,etc).
The process requires applicant, exporter and consignee information, detailed info of goods and may take 6 weeks or longer for processing and review. "
A quick look at the shipping details of MyUS.com,will confirm that:" MyUS will not export any product that appears to be a weapon, weapon part or accessory to a weapon."...."Rifle scopes,laserpointing & aiming devices for firearms" are specifically mentioned in the list"WHAT CAN'T SHIP INTERNATIONALLY"
Here in Canada I have checked with Fed EX......Purolator.....HTL....and others and they all have the same policy.Even with an export permit most will refuse to ship.
Undocumented items can be seized, confiscated and fines may be levied at customs port of entries.
Lastly ,I can also confirm that Replica firearms are listed as prohibited from entering Canada.
These include: "Replica firearms designed or intended to exactly resemble a firearm with near precision:
-are not reproductions of antique firearms: and
-May include airsoft or blank guns "
Please check out" Memorandum D-19-13-2 .Importing and exporting Firearms,Weapond an Devices "It lists everything from brass knuckles to mace to knives ,Tasers ,batons, silencers,cartridge magazines above a certain capacity and many many more items.
I would bet the US perspective is very similar at the border.
Please don't shoot the messenger and please be careful.
Sorry that this post was so long,
Hope this helps,
Gilles