Final answer:
The 2nd Amendment of the United States Constitution is the amendment someone would most likely use to argue for gun ownership rights.
Step-by-step explanation:
The amendment that someone would most likely use to argue that people should be allowed to own guns is the 2nd Amendment of the United States Constitution.
The 2nd Amendment states: 'A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.'
This amendment is often cited in debates surrounding gun ownership rights and provides the constitutional basis for individuals to argue for their right to possess firearms.
Learn more about 2nd Amendment and gun ownership rights