US citizens can legally purchase guns from a gun dealer or from another individual. There are a few states that have restrictions, but most do not.
yes
The Second Amendment to the Constitution of the US.
No. In Iran, possession of firearms is illegal for common citizens.
Citizens have the Freedom of Gun
Yes, if they are born in the US, they are US citizens.
The US Government through the US Constitution allows citizens to carry arms. The most popular gun owned in the US is the Colt M1911 followed by the Smith and Wesson number 10 revolver.
No.
No reciprocity, to safely assume. It is incredibly hard for its own citizens to obtain a firearm, much less a carry permit.
A gun.
In MOST of the US, there is no requirement to license or register guns. If they are not registered, there is no way to know how many there are. in 2004, it was estimated that private citizens in the US owned 192 million firearms- the number is higher now.
In the US, rifles and shotguns can be mailed by US Mail. Handguns may only be shipped by Federal Express or UPS. A licensed dealer CAN mail a handgun in the US Mail- private citizens may not.
it has set laws in it that protect citizens