AI-rewritten: This is a summary of an article from Tom’s Hardware, rewritten by AI (Qwen, running locally) to make it easier to read. The facts come from the original article – read it for the full story.
The State of California filed a civil lawsuit against Polymaker LLC on October 5, 2026, alleging the company promoted "ghost guns" by marketing its 3D printing filament to gun enthusiasts. San Diego County Counsel represents the state in this case brought in San Diego County Superior Court. The complaint argues that Polymaker’s actions transformed harmless plastic into regulated firearm precursor parts under California law. A firearm precursor part is defined as any article sold to the public intended to become or be used as the frame or receiver of a functional firearm once assembled.
Prosecutors claim Polymaker cultivated this market by hiring Sean Aranda, known online as The 3D Print General. Aranda was banned from YouTube in 2023 for firearm policy violations but had 123K subscribers. Polymaker previously sponsored his channel with a special khaki-colored PLA Pro spool and subsequently offered him a job. He now serves as a Senior Technical Account Manager, a role that involves fostering the company’s online community and attending festivals. Aranda is mentioned 65 times in the 39-page complaint, which suggests he was hired specifically for his connection to the gun community rather than just as a qualified candidate seeking employment.
The lawsuit highlights Polymaker’s open application for affiliate links, a common marketing tool where creators earn a small percentage of sales when viewers click their links. The application asks for names, locations, and follower counts but does not inquire about content type or audience size regarding firearms. San Diego County’s new Consumer Fairness and Public Protection Division is seeking disgorgement of profits, civil penalties, and injunctive relief. If the state prevails, the ruling could extend liability to other raw material suppliers and hardware manufacturers across the digital age.
Source: Tom’s Hardware • Denise Bertacchi • October 11, 2026