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Bill

AB 2047

Firearms: 3-dimensional printing blocking technology.

2025-2026 Regular Session Introduced by Rebecca Bauer-Kahan and 4 co-sponsors

Requires California firearms to include technology preventing 3D printing of gun components, targeting untraceable weapon manufacturing.

Read second time and amended. Re-referred to Com. on APPR.
#3-dimensionalprintingblockingtechnology #firearms
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Bill Summary · AB 2047

Legislative bill overview

AB 2047 would require firearms manufactured or sold in California to include technology that blocks the production of firearm components using 3D printing methods. The bill aims to prevent the creation of untraceable firearms and firearm parts through additive manufacturing technology.

Why is this important

3D printing technology has made it increasingly possible for individuals to manufacture firearm components or complete firearms outside traditional regulatory channels, creating law enforcement and public safety concerns. This bill represents California's attempt to close what some view as a significant gap in firearm regulation by addressing an emerging manufacturing method.

Potential points of contention

  • Technical feasibility and cost: Critics question whether blocking technology can be effectively implemented across all firearm types and manufacturing conditions, and whether compliance costs would be passed to consumers or manufacturers.
  • Second Amendment concerns: Gun rights advocates argue the bill infringes on constitutional protections and manufacturing rights, potentially facing legal challenges similar to other California firearm restrictions.
  • Enforcement and scope: The bill's effectiveness depends on how broadly "blocking technology" is defined—unclear definitions could create compliance confusion or loopholes, or conversely, could be so broad as to affect legitimate manufacturing processes.

Compiled from official sources — confirm details with the bill’s official record.

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