glock ban

California’s effort to restrict sales of handguns that can be converted into fully-automatic machine guns drew an immediate federal challenge Wednesday, with the Trump administration suing the state over its new “Glock ban” law just hours after it took effect.

The U.S. Department of Justice is seeking a court order to block the controversial state law that limits where most Glock and Glock-style pistols can be sold. The lawsuit, filed in U.S. District Court for the Central District of California, also aims to invalidate key parts of the state’s handgun roster — a list that dictates the types of firearms that Californians may legally purchase. In a statement Wednesday, acting Atty. Gen. Todd Blanche said that both policies “trample” the rights of law-abiding Californians.

“The Second Amendment is a sacred right belonging to all Americans, even those in California,” Blanche said. “California cannot ban the most popular type of handgun in America.”

California’s Assembly Bill 1127 does not explicitly name the Glock brand, but instead targets any handgun with a specific mechanism that can easily be converted by a black market device. These simple “Glock switches” convert semiautomatic handguns into a weapon capable of firing 20 rounds per second with a single squeeze of the trigger.

Advances in 3D printing have made the conversion devices widely available and cheap to produce. Federal authorities reported recovering 11,088 of them from crime scenes between 2019 and 2023. Switches have been used in several mass shootings, including one in Sacramento that resulted in six deaths and 12 injuries in 2022.

The new law does not prohibit the possession of affected handguns already owned by Californians, and includes exemptions for gun dealers, as well as law enforcement and military agencies.

Gov. Gavin Newsom signed the bill in October, and has maintained that firearm laws are responsible for California’s declining crime rates and gun deaths.

“The Trump administration is once again trying to dismantle California’s commonsense gun safety laws,” Diana Crofts-Pelayo, a spokesperson for the governor, said in a statement. “Our response is simple — these laws save lives.”

The federal government argues in its complaint that California can’t ban legal semiautomatic handguns simply because they could be illegally altered, adding that state and federal law already prohibit such pistol converters. The U.S. compared California’s approach to banning ordinary shotguns because they can be illegally shortened.

The lawsuit also challenges California’s decades-old handgun roster, which requires new handgun models to pass certain safety tests before they can be approved for retail sale. A federal judge tentatively blocked portions of the roster requirements in a separate 2023 case, which is being appealed before the 9th Circuit. That lawsuit was filed by the California Rifle & Pistol Assn. and other gun rights supporters following a landmark 2022 decision by the U.S. Supreme Court that set new standards for evaluating firearm restrictions.

Under those new guidelines, the Trump administration wants a judge to find that California’s gun restrictions violate the 2nd Amendment, and is seeking an order to bar the state from enforcing them.

The Trump administration is relying on a federal civil rights law typically used against police departments accused of repeated constitutional violations, arguing that California Atty. Gen. Rob Bonta and state Justice Department agents qualify as peace officers and therefore violate gun owners’ rights whenever they enforce handgun restrictions.

Bonta, who is named in the suit, has a winning court record over the Trump administration, and has secured at least 12 final court rulings and more than 35 preliminary injunctions or emergency orders.

“We won’t be intimidated by another politically motivated lawsuit,” said Crofts-Pelayo, Newsom’s spokesperson. “We’ll continue defending the laws that protect Californians and keep dangerous weapons off our streets.”