Firearms & Second Amendment

The Second Amendment & firearms law

The Second Amendment and firearms law explained: the right to keep and bear arms, the Supreme Court cases, federal gun laws and concealed carry permits.

Overview

What this area covers

The text and meaning of the Second Amendment; Heller, McDonald, Bruen, Rahimi and the 2026 decisions; the National Firearms Act and Gun Control Act; who may not own a gun; background checks; concealed carry permits and permitless carry; reciprocity and traveling with a gun; and red flag laws. Each guide quotes the constitution, statute or court decision it relies on and notes where states differ.

Hub Firearms

Second Amendment text

What it says and what Heller held.

Supreme Court cases

Heller to Wolford, and what is pending.

The Bruen test

Text, history and tradition.

Federal gun laws

The NFA and the Gun Control Act.

Who cannot own a gun

The nine categories in § 922(g).

Background checks

NICS and the three-day rule.

Carry permits

CCW, LTC and permitless carry.

Reciprocity & travel

Carrying across state lines.

Red flag laws

Extreme risk protection orders.

Pages

In this section

Concealed Carry Permits and Permitless Carry

Bruen, 597 U.S. 1 (2022)

Carrying a handgun in public is governed mostly by state law. This guide explains concealed carry permits (CCW and LTC), shall-issue licensing,…

Concealed Carry Reciprocity and Traveling With a Gun

18 U.S.C. §§ 922(q), 926A, 926B, 926C

There is no national concealed carry permit. This guide explains how concealed carry reciprocity works between states, the federal safe-passage law for…

Federal Gun Laws: The National Firearms Act and Gun Control Act

26 U.S.C. §§ 5801–5872 (National Firearms Act)

Two federal statutes form the core of federal gun laws: the National Firearms Act of 1934 and the Gun Control Act of…

Gun Background Checks and NICS

18 U.S.C. § 922(t)

When you buy a gun from a licensed dealer, the dealer must run a background check through NICS. This guide explains how…

Red Flag Laws: Extreme Risk Protection Orders

Bipartisan Safer Communities Act, Pub. L. 117-159 (2022); 34 U.S.C. § 10152

Red flag laws let a court temporarily remove firearms from a person found to pose a risk. This guide explains how extreme…

Second Amendment Supreme Court Cases: Heller to Wolford

Heller, 554 U.S. 570 (2008)

A short guide to the major Second Amendment Supreme Court cases, from Heller in 2008 through the 2026 decisions in Hemani and…

The Bruen Test: Text, History and Tradition

Bruen, 597 U.S. 1 (2022)

Since 2022, courts decide Second Amendment challenges with the Bruen test of text, history and tradition. This guide explains how the Bruen…

The Second Amendment: Text and Meaning

U.S. Const. amend. II

The Second Amendment protects the right to keep and bear arms. This guide explains the Second Amendment's text, what the Supreme Court…

Who Cannot Own a Gun: Prohibited Persons Under 18 U.S.C. § 922(g)

18 U.S.C. §§ 921(a)(20), 922(g), 922(n)

Federal law lists nine groups of people who may not possess firearms or ammunition. This guide explains who cannot own a gun…

Overview

Studying the Second Amendment and firearms law

The Second Amendment protects the right of the people to keep and bear arms. The Supreme Court has held that this is an individual right and that it applies to the states. Even so, the right is not unlimited, and federal, state and local laws regulate who may own a gun and where it may be carried.

Firearms law has changed quickly. For example, since 2022 courts decide challenges by asking whether a law fits the nation’s historical tradition of firearm regulation. In addition, 29 states now allow permitless carry, while 21 states and D.C. still require a permit. Because the rules change often, every guide shows when its sources were last checked.

Our guides start with the text and the Supreme Court cases. Next come the federal statutes, the list of people who may not own a gun, and background checks. Then come concealed carry permits, reciprocity, traveling with a gun and red flag laws.

Each guide quotes the constitution, statute or court decision it relies on and links to the source. For instance, you can read the federal statutes in the United States Code. This section is legal information for education, not legal advice. For a real situation, talk to a licensed attorney in your state.

Start with the Second Amendment text and meaning, then read the carry permits guide. The glossary defines terms such as permitless carry, prohibited person, NICS and red flag law. However, state and city laws differ widely, so always check the current law where you are.

Second amendment — courthouse steps at golden hour

Lawtopolis provides legal information and education, not legal advice. Using this site does not create an attorney-client relationship. Laws and court rules vary by jurisdiction and change over time; verify every authority against the official source and consult a licensed attorney in your jurisdiction about your situation.