No.
New Mexico's gun laws are pretty lenient. New Mexico does not require a hand gun to be licensed or registered.
At a minium, 21 for a hand gun and 18 for a long gun.
You would have to go to your local gun shop and register your firearm there. Then, after completing that, you would have to go the gun range and register yourself there, with your gun permit.
Depends on where you are. In MOST of the US, there is no requirement to register an ordinary firearm. There is also no place to register a gun- on line or otherwise.
Depends on what state you are in. In MOST of the US, there IS no requirement to register a gun.
No
No.
No
no
Like most states, there is no firearms registration in West Virginia.
Gun dealers do not register ANY gun sales with the Federal Government (with the exception of machine guns, etc). They must maintain a record of all firearms sales at their place of business for 20 years. New & used guns both.