Final answer:
The Second Amendment of the United States Constitution gives Americans the freedom to own guns.
Step-by-step explanation:
The sentence that gives Americans the freedom to own guns is:
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 sentence is found in the Second Amendment of the United States Constitution. It guarantees the right of individuals to own and possess firearms. This right has been interpreted and debated extensively throughout history.
Learn more about The Second Amendment and the right to bear arms