In the United States, the right to keep and bear arms is a fundamental right protected by the Second Amendment to the United States Constitution, part of the Bill of Rights, and by the constitutions of most U.S. states. The Second Amendment declares: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.

The right to keep and bear arms is a legal right for people to possess weapons (arms) for the preservation of life, liberty, and property. The purpose of gun rights is for self-defense, as well as hunting and sporting activities. Countries that guarantee the right to keep and bear arms include Albania, Czech Republic, Guatemala, Ukraine, Mexico, the United States, Yemen, and Switzerland.