Amount of what?
No records of exact numbers. Estimated at ABOUT 320 million.
Presumably legal. There are no solid statistics to indicate what the number of illegal guns are - it can only be estimated. Also, there are very few guns that are illegal. This would include only machine guns and destructive devices without proper paperwork. Most guns used in crime are legal to own by normal people, but in possession of what is called a "prohibited person". Felons may not possess guns, but it is the felon status that makes this a crime, not the gun.
America does not certify, register or license people to own guns in most areas. Therefore, there is no way of answering. It is estimated that a bit more than 1/3 of all households in the US have at least 1 gun.
the last guns made in America according to my data was 1975-1976.
There WAS no America in the year 1200.
By ship
No
#
estimated 20 million pistols and rifles
Gun Broker, Guns America, Guns International
The United States has the highest number of guns per capita in the world. It is estimated that there are around 393 million guns owned by civilians in the U.S.
America.