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Key Facts
- Federal constitutional level: The Second Amendment protects the right of the people to keep and bear arms.
- Federal constitutional level: “Keep” concerns possession, while “bear” refers to carrying arms for confrontation.
- Federal constitutional level: District of Columbia v. Heller recognized an individual right unrelated to militia service, centered on lawful self-defense.
- Federal and state: McDonald v. Chicago applied the Second Amendment right to state and local governments through the Fourteenth Amendment.
- Federal constitutional level: The right is not unlimited, and modern review examines constitutional text and the nation’s historical tradition of firearm regulation.
“Bear arms” is constitutional language, not a complete description of every firearm rule. Its legal meaning comes from the Second Amendment’s text and Supreme Court decisions interpreting the relationship among keeping arms, carrying them, self-defense, militia language, and regulation.
What “keep and bear arms” means
The Second Amendment protects “the right of the people to keep and bear Arms.” In District of Columbia v. Heller, the Supreme Court read “keep” as possessing arms and “bear” as carrying them for the purpose of confrontation.
Heller held that the operative clause protects an individual right that is not conditioned on serving in an organized militia. The prefatory reference to a well-regulated militia announces a purpose but does not eliminate the individual-right meaning of the operative text.
Self-defense is central, but the right has limits
Heller described lawful self-defense as central to the Second Amendment right and invalidated a District of Columbia handgun ban and a requirement that prevented an operable firearm from being used for immediate self-defense in the home.
The Court also stated that the right is not unlimited. Its opinion identified longstanding restrictions such as prohibitions on firearm possession by felons and people with mental illness, restrictions in sensitive places, conditions on commercial sales, and limits on dangerous and unusual weapons as examples it was not casting doubt upon.
The Second Amendment applies to states
McDonald v. Chicago held that the Fourteenth Amendment makes the individual Second Amendment right applicable to state and local governments. State and local firearm laws therefore must comply with the federal constitutional minimum.
That does not make firearm law uniform nationwide. States retain authority to legislate within constitutional boundaries, and their licensing, possession, carrying, storage, and prohibited-place rules can differ.
Bruen adopted a text-and-history framework
New York State Rifle & Pistol Association v. Bruen rejected the former two-step approach that combined history with means-end scrutiny. When the Second Amendment’s plain text covers a person’s conduct, government must justify its regulation by showing consistency with the nation’s historical tradition of firearm regulation.
Bruen also held that the Second and Fourteenth Amendments protect carrying a handgun for self-defense outside the home. It invalidated New York’s requirement that an applicant demonstrate a special need for unrestricted public carry.
Rahimi clarified historical comparison
United States v. Rahimi upheld a federal prohibition on firearm possession by a person subject to a qualifying domestic-violence restraining order. The Court explained that a modern law need not be a historical twin; it must be relevantly similar to historical regulations in why and how it burdens the right.
Rahimi emphasized that courts should not treat historical analysis as a search for a perfectly matching old law. The inquiry considers the principle reflected in the regulatory tradition and the burden imposed.
“Bear arms” does not answer every modern question
The constitutional phrase supplies a protected-right baseline, but individual disputes can turn on the person, weapon, conduct, place, and particular regulation. Federal statutes and state laws operate alongside the constitutional rule.
For background on constitutional structure, see this guide to the U.S. Constitution and government power and this overview of the Bill of Rights.
Sources
- Constitution Annotated: Text of the Second Amendment
- Constitution Annotated: Modern Second Amendment doctrine
- Supreme Court: District of Columbia v. Heller
- Supreme Court: McDonald v. Chicago
- Supreme Court: New York State Rifle & Pistol Association v. Bruen
- Supreme Court: United States v. Rahimi
- Constitution Annotated: Incorporation of the Second Amendment
