The United States Department of Justice has initiated legal action against California regarding a state law that prohibits the sale of certain handguns capable of being converted into fully automatic weapons. The lawsuit, filed in federal court in Orange County on Wednesday, specifically targets legislation that restricts the sale of firearms that can be modified with devices known as switches.
The dispute centers on Assembly Bill 1127, signed by Governor Gavin Newsom in 2025, which prohibits gun dealers from selling semiautomatic pistols that can be converted to machine guns. This legislation has been informally referred to as a ban on certain popular handgun models, particularly those that can be modified with aftermarket devices.
Acting Attorney General Todd Blanche stated that the Second Amendment protects the rights of all Americans, including California residents, and argued that the state cannot prohibit what he described as the most popular type of handgun in America. The Justice Department maintains that the law represents an infringement on constitutional rights.
The controversial modification devices at the center of this dispute are small attachments that can be installed on certain semiautomatic pistols, converting them to fire at rates of up to 1,200 rounds per minute. These devices, which originated from a design created by a 22-year-old Venezuelan inventor in the late 1990s, have become increasingly prevalent in recent years. Some are manufactured overseas, particularly in China, while others are produced domestically using 3D printing technology.
The proliferation of these conversion devices has raised significant public safety concerns. In 2022, a mass shooting in Sacramento that resulted in six deaths and twelve injuries involved at least one firearm modified with such a device. This incident and others have prompted California lawmakers to take action against weapons that can be easily converted to automatic fire.
In its legal filing, the Department of Justice argues that California’s approach is fundamentally flawed. The government draws an analogy to shotguns, noting that while a legal shotgun can be illegally modified into a sawed-off weapon using common tools, this does not justify banning all shotguns. The lawsuit contends that perfectly legal firearms should not be prohibited simply because they could potentially be illegally modified.
The federal government’s challenge relies heavily on the 2022 Supreme Court decision in New York State Rifle & Pistol Association v. Bruen, which strengthened Second Amendment protections. Justice Clarence Thomas, writing for the 6-3 majority, established that when the Second Amendment’s text covers an individual’s conduct, the Constitution presumptively protects that activity. The government must then demonstrate that any regulation aligns with the nation’s historical tradition of firearm regulation.
The Justice Department’s complaint emphasizes that the affected handguns are in common use throughout the United States and have become standard equipment for most police departments and federal law enforcement agencies, including the FBI. The lawsuit argues there is no historical precedent for banning weapons that are commonly used by law-abiding citizens.
Additionally, the federal challenge extends beyond the 2025 legislation to include California’s 2003 Unsafe Handgun Act. This earlier law prohibited the sale of certain handguns lacking specific safety features or failing to meet established safety requirements. The Justice Department contends these regulations also violate constitutional protections established under the Bruen decision, arguing they prevent California residents from acquiring modern handguns for self-defense purposes.
California Attorney General Rob Bonta’s office has indicated they will review the complaint and respond appropriately in court. A spokesperson noted that California’s gun safety laws have contributed to record-low firearm death rates in the state and serve as a model for reducing gun violence nationwide.
This legal confrontation represents the latest chapter in the ongoing debate over gun regulations and constitutional rights, with California’s stringent firearm laws once again facing federal scrutiny under evolving Second Amendment jurisprudence.
Leave a Reply