Attorney General Marty Jackley and two dozen other state attorneys general are challenging a California firearm law.
The law would ban magazines that can hold more than 10 rounds.
“This ban is another intrusion on the Second Amendment rights of law-abiding citizens,” Jackley said. “It is important that attorneys general nationwide remain vigilant against any legislation that infringes upon an individual’s Second Amendment rights.”
The amicus brief asks the Ninth Circuit Court of Appeals to uphold an earlier ruling by a U.S. District Court in California.
The ruling said the magazine ban denies citizens their constitutional right to use common weapons of their choice for self-defense.