The Supreme Court will consider whether state and local bans on semiautomatic rifles, often called assault weapons, violate the Second Amendment.
The justices said Tuesday they will hear appeals over bans on AR-15-style and similar firearms in Connecticut and the Chicago area. Arguments are expected in the fall.
The case is the latest major gun dispute to reach the court since its 2022 ruling expanding Second Amendment rights prompted challenges to firearm laws across the country.
Similar laws are in effect in about a dozen states, including in areas covering New York, Los Angeles, and Washington, D.C. Congress allowed a federal assault weapons ban to expire in 2004, but Democrats have backed renewing it after a series of mass shootings. States have continued to pass their own measures, including recent laws in Virginia and Rhode Island.
Connecticut enacted its law after a gunman used an AR-15 to kill 26 children and educators at Sandy Hook Elementary School in 2012. The state argued the firearms can be banned because they are similar to military-grade weapons and have been used in mass shootings.
“These laws are critical public safety measures, and they are consistent with the Second Amendment,” said Janet Carter, managing director of Second Amendment litigation at Everytown Law.
Gun rights groups argued that banning semiautomatic rifles is unconstitutional because millions of Americans legally own them.
“The Second Amendment protects arms in common use for lawful purposes, and it’s hard to argue that a type of rifle that potentially outnumbers Ford F-150 trucks in America doesn’t meet that standard,” said Adam Kraut, executive director of the Second Amendment Foundation.
Four conservative justices had previously signaled interest in taking up the issue. The ban in Cook County, Illinois, was first passed in 1993, and lower courts had upheld both laws.
“If the Second Amendment does not protect the most popular rifles in the country, it is hard to see how it protects any firearms at all,” aside from handguns kept in the home, the challengers wrote.
Cook County attorneys said the law is constitutional. “The trauma that assault weapon massacres have inflicted on the public at large has been staggering,” they wrote.
The court backed Second Amendment claims in two cases this term, striking down gun-carry restrictions in Hawaii and a federal ban on gun ownership by marijuana users. It has also upheld some limits, including a law barring people under domestic violence restraining orders from having guns.