Granted, argument Dec 2 Updated 106 days ago
Where it stands
Cert granted Jun 30, 2026. Challenge to the Cook County assault weapons ordinance. Decision is typically issued by the end of June 2027.
The legal question
Can a county ban AR-15-style semi-automatic rifles consistent with the Second Amendment, and is that decided by whether the rifles are in common use (Heller) or by a broader historical inquiry (Bruen)?
In legal terms
Cutberto Viramontes challenged a Cook County, Illinois ordinance that bans "assault weapons," defined as semi-automatic rifles that can accept a large-capacity magazine and have features such as a pistol grip or muzzle brake, plus a list of named models. The district court ruled for the county on summary judgment in March 2024. The Seventh Circuit affirmed in June 2025, relying on its 2023 decision in Bevis v. City of Naperville, which upheld Illinois's statewide ban. Bevis reasoned that AR-style rifles are not materially different from the M16 rifles used by the military and so fall outside the class of arms the Second Amendment protects. The Supreme Court declined to review Bevis in July 2024.
The challengers argue the rifles are among the most common in the country, so Heller's "in common use" principle protects them. The county argues they are functionally military weapons and that the history-and-tradition test from Bruen allows the ban no matter how popular the rifles are. The Court agreed on June 30, 2026 to hear the case together with Grant v. Higgins, a challenge to Connecticut's similar law. The case turns on a methodology question that the lower courts have answered differently: does popularity decide whether an arm is protected, or does history?
What this means, in plain English
Cook County, Illinois says you cannot own the most popular rifle in America, the AR-15, or rifles like it. Gun owners say a rifle that millions of ordinary people own for home defense, hunting and target shooting is exactly what the Second Amendment covers. The county says these rifles work like military weapons, so they can be banned.
The Supreme Court has never settled this directly. In 2025, when it turned down a Maryland case on the same issue, Justice Kavanaugh wrote that the Court should take up the AR-15 question "in the next Term or two." It has now done that.
Argument is December 2, 2026. The ruling should come by the end of June 2027.
This is the Court's first merits case on a rifle ban. A ruling for the challengers would put rifle bans, and likely magazine limits built on the same reasoning, in doubt in every state that has them. A ruling for the government would let those laws stand and set the test for the next wave of cases. The Court is hearing it in one hour of argument with Grant v. Higgins, so one opinion should cover both.
Rifle bans in Illinois, Connecticut and other states with similar laws would lose their legal footing, and challenges to magazine limits would likely get stronger.
The bans stay. States would have a green light to pass similar laws, and lower courts would follow the Court's reasoning on "dangerous" or military-style arms.
What to watch: Dec 2, 2026: oral argument. Listen for whether the justices ask about "common use" or about historical analogues. That tells you which test is likely to win.
Timeline
Key terms
- Heller (2008)
- The Supreme Court case that held the Second Amendment protects an individual right to keep a firearm for self-defense, and struck down D.C.'s handgun ban. It also said the right covers arms "in common use" for lawful purposes.
- Bruen (2022)
- The Supreme Court case that struck down New York's rule requiring a special reason to get a carry permit. It set the test courts use today: if the Second Amendment's text covers what you did, the government must show its law fits the country's historical tradition of firearm regulation.
- "Common use"
- A Heller idea: arms commonly owned by law-abiding people for lawful purposes are protected. Challengers to rifle and magazine bans lean on it. Governments argue the real test is history, not popularity.
- Circuit
- The U.S. has 13 federal appeals courts. Twelve are regional (the 1st through 11th Circuits and the D.C. Circuit) and cover specific states. Their rulings bind the states in their region.
- Nominal damages
- A token payment, often one dollar, that lets a plaintiff keep a case alive after a law changes.
States affected
Related
Grant v. Higgins
Cert granted Jun 30, 2026. Challenge to Connecticut's ban on AR-15-style rifles, from the Second Circuit. Argued together with Viramontes in one hour on Dec 2, 2026.
NAGR v. Lamont
Connecticut assault weapons challenge. Distributed for the Sep 28 conference; no order confirmed yet.
Sources: court dockets, the Federal Register, DOJ releases and Congress.gov. Informational only, not legal advice. Items marked Unverified are awaiting review.