SACRAMENTO, Calif., July 2 (Our California Times) — California began enforcing a new law July 1 that bars licensed firearms dealers from selling certain semiautomatic pistols that can be readily converted into machine guns, even as the Trump administration filed a federal lawsuit seeking to block the measure.
AB 1127 expands the state’s definition of a machine gun to include a machinegun-convertible pistol equipped with a pistol converter. Under the statute, dealers may not sell, offer for sale, exchange, give, transfer or deliver the covered handguns.
The law was authored by Assemblymembers Jesse Gabriel, D-Encino, and Catherine Stefani, D-San Francisco, and Gov. Gavin Newsom signed it on Oct. 10, 2025, according to the California Assembly and the state legislative record.
The statute defines the covered pistols as semiautomatic handguns with a cruciform trigger bar that can be converted by hand or with common household tools into a machine gun using a pistol converter, a device often called a Glock switch.
The law does not bar possession by current owners and includes exemptions for gun dealers, law enforcement and military agencies in future sales, according to the legislative summaries. The state legislative record lists AB 1127 as Chapter 572, Statutes of 2025.
