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Bill

AB 1263

Firearms: ghost guns.

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

California requires serial numbers on all firearms including unserialized kits and 3D-printed guns, establishing manufacturer licensing and record-keeping to enable crime tracing and background checks.

Chaptered by Secretary of State - Chapter 636, Statutes of 2025.
#firearms #ghostguns
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WeVote Research Nonpartisan
Bill Summary · AB 1263

Legislative bill overview

AB 1263 regulates the manufacture, sale, and possession of unserialized firearms, commonly known as "ghost guns," in California. The bill requires serial numbers on all firearms, including those made from kits or 3D-printed, and establishes licensing and record-keeping requirements for manufacturers and sellers of firearm parts and kits.

Why is this important

Ghost guns—firearms without serial numbers—complicate law enforcement's ability to trace weapons used in crimes and circumvent existing background check requirements. This bill attempts to close a regulatory gap that has grown as manufacturing technology has become more accessible, affecting both public safety efforts and the firearms market in California.

Potential points of contention

  • Constitutional concerns: Second Amendment advocates argue serialization requirements and manufacturing restrictions infringe on individual rights and self-manufacturing traditions
  • Enforcement challenges: Determining what qualifies as a "firearm" under the law, especially with partially completed kits or 3D-printing technology, creates ambiguity for manufacturers and sellers
  • Economic impact: Licensing and compliance costs may burden small manufacturers and retailers, while existing gun manufacturers argue unequal regulatory treatment
  • Interstate commerce: California's stricter rules may conflict with less-regulated neighboring states, potentially affecting sales and enforcement

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

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