Full Breakdown
California Bill Seeks to Block 3-D-Printed Gun Parts, Sparks Industry Pushback
7/19/2026, 9:03:20 PM
Proposed Restriction on 3-D Printers
Assembly Bill 2047, passed the California Assembly in May 2026 and moving through the Senate, would require every 3-D printer sold in the state to include software that blocks the printing of gun triggers and other firearm components. Printers lacking the state-approved software could not be sold or transferred after December 2029. Lawmakers cite “ghost guns,” which lack serial numbers, as a growing threat: federal data show privately made firearms recovered in crimes rose from more than 1,600 in 2017 to nearly 27,500 in 2023, with California accounting for the largest share.
Legislative Background and Scope
Assemblymember Rebecca Bauer-Kahan framed the bill as a proactive step to stop a new pipeline for untraceable weapons. An entertainment-industry exemption was added, intended to spare stage-craft and prop-making studios that use general-purpose printers for movie effects. Critics note that such printers are not marketed exclusively to Hollywood, making the exemption largely symbolic.
Official Statements & Support
Bauer-Kahan stressed the urgency of acting before more violence occurs. Everytown for Gun Safety highlighted rising 3-D-printed firearm recoveries in 20 major cities and warned that plastic parts can bypass background checks. Paul Powers of Physna said the blocking software does not log designs or transmit data to authorities.
Criticism & Opposition
A coalition of 3-D-printing firms, prop studios, and civil-rights groups filed a June 1 letter citing First-Amendment concerns and privacy risks. Jakub Kmošek of Prusa Research warned the bill would hinder repair, experimentation and innovation. Marleen Vogelaar of Thangs3D warned of lagging databases and false-positive blocks, while Aubrey Rodriguez of ACLU California Action warned of a “permanent back door” for digital surveillance.
Verbatim Quotes
- “As gun violence continues to devastate our communities, we cannot allow 3-D printing technology to become a new pipeline for untraceable weapons,” — Rebecca Bauer-Kahan, Assemblymember
- “It is over whether the state can or should require a consumer tool to surveil a person’s designs before they are allowed to make something.” — David Tobin, independent creator
- “To an algorithm, a gun barrel and a piece of pipe are the same grooved cylinder,” — Jakub Kmošek, head of public affairs, Prusa Research
- “These databases will always lag behind innovation and can be easily circumvented and generate false positives that block legal designs and wrongly flag everyday makers,” — Marleen Vogelaar, chief executive, Thangs3D
- “Once this new infrastructure exists, it is a simple software update away from tracking political dissent or preventing 3-D printing designs deemed inappropriate,” — Aubrey Rodriguez, ACLU California Action
