Depends on the law where you are- varies state to state. In MOST of the US, there IS no registration of firearms.
almost anywhere
depends on where you are- and you did not tell us that.
21 for hand gun 18 for long gun
bill
Too many
There is no such thing as a gun license in the US. There are concealed carry permits/licenses and dealers licenses.
There is only one US Marshal. The rest are Deputy US Marshals.Another View: The US Marshalls Service is headed by a Director.Each of the 94 federal court districts has a US Marshall assigned to that district.All sworn personnel under the 94 US Marshalls are known as DEPUTY US Marshalls.
The U.S. Marshalls Service
Not in the US.
Sorry- Illinois has the most restrictive concealed carry laws in the US. Other than occupations such as police officer or armed security officer, you will not get a permit.
You need to define the term gun license. In most of the US there is no license to own a gun. Some states require a license to carry a gun. others to carry a gun concealed. There is also a license to make or sell guns. All are different and have different procedures.