California Attorney General Rob Bonta has launched a high-profile court fight in San Francisco, filing a lawsuit in Superior Court that takes direct aim at what he calls the beating heart of the state’s ghost-gun problem. The complaint targets Gatalog Foundation Inc. and CTRLPew LLC, accusing the two outfits of publishing downloadable blueprints and computer code that let users 3D-print untraceable firearms, conversion devices and large-capacity magazines. San Francisco City Attorney David Chiu signed on to the case, which asks a judge to shut down the online file distribution and hold the operators liable.
State moves to choke off online blueprints
In a press release, the California Department of Justice said the lawsuit zeroes in on entities that promote and facilitate the unlawful manufacture of 3D printed firearms and machine guns, alleging they made files for printing weapons and conversion devices available to people in California. “These defendants’ conduct enables unlicensed people who are too young or too dangerous to pass firearm background checks to illegally print deadly weapons without a background check and without a trace,” Bonta said in the statement from the Office of the Attorney General. The announcement also noted that Chiu joined the action and that both offices are asking the court to halt the alleged online distribution.
What the complaint alleges
The lawsuit claims Gatalog and CTRLPew provided computer code and step-by-step instructions for 3D-printing firearms, conversion devices such as “Glock Switches,” and illegal large-capacity magazines, while simultaneously selling branded merchandise and soliciting donations, according to the Sierra Sun Times. Prosecutors say the defendants ran a platform where designers could test firearm models and upload files for wider public access. The complaint characterizes that setup as a business model built to dodge background checks and serial-number rules while turning access to unlawfully produced weapons into a revenue stream.
Why California says this is urgent
California’s Office of Gun Violence Prevention reports a steep climb over the past decade in ghost guns recovered from crime scenes and warns that the market is increasingly shifting to products that bypass traditional purchase checks, including 3D-printable files and CNC designs, according to the Office of the Attorney General. The agency notes that while some recovery numbers dipped between 2021 and 2023, manufacturers and online platforms have been pivoting toward untraceable, home-built weapons and conversion parts, making enforcement tougher. State officials point to that technological and supply shift as a key reason for bringing the civil suit now.
Legal stakes and next steps
As reported by the Sierra Sun Times, the complaint asks the court to bar Gatalog and CTRLPew from posting and profiting off weapon files accessible to Californians and seeks penalties under state consumer-protection and firearms laws. The filing lands in the middle of broader state efforts to clamp down on DIY machine guns, including legislation that aims to limit sales of pistols that can be easily converted. The case will move forward in San Francisco Superior Court, and upcoming filings are expected to reveal whether the companies argue First Amendment or other defenses, and whether the judge signs off on the state’s request for swift emergency relief.
