The California state government has initiated a lawsuit against Polymaker LLC, a manufacturer of 3D printing materials. The authorities allege that the company facilitated the production of ghost guns by marketing its PLA filaments to firearm enthusiasts.
According to the complaint, California law classifies firearm precursor parts as items marketed to the public that can be assembled or modified into functional firearm frames or receivers. The prosecution acknowledges that the materials themselves are legal.
The lawsuit highlights Polymaker's support for Sean Aranda, a 3D printing expert and firearm enthusiast known as the 3D Printing General. The company previously sponsored his social media channel and provided him with specialized PLA Pro filament.
Aranda later joined Polymaker, serving as a customer experience lead before being promoted to senior technical account manager. The state claims his hiring was motivated by his strong ties to the 3D-printed gun community.
The government is seeking several legal remedies in this case. These include the disgorgement of profits related to the alleged activities, the imposition of civil penalties, and a court-ordered injunction against the company.
