AB 1127: Firearms: converter pistols.

Official summary

Legislative Counsel’s Digest (official, as of the latest version). Written by nonpartisan legislative staff; reproduced verbatim.

Existing law prohibits any person from selling, leasing, or transferring any firearm unless the person is licensed as a firearms dealer, as specified. Existing law prescribes certain requirements and prohibitions for licensed firearms dealers. A violation of any of these requirements or prohibitions is grounds for forfeiture of a firearms dealer’s license. For purposes of these provisions, existing law defines “machinegun” to mean, among other definitions, any weapon that shoots or is designed to shoot automatically more than one shot, without manual reloading, by a single function of the trigger.

This bill would, on and after July 1, 2026, prohibit a licensed firearms dealer to sell, offer for sale, exchange, give, transfer, or deliver any semiautomatic machinegun-convertible pistol, except as specified. For these purposes, the bill would define “machinegun-convertible pistol” as any semiautomatic pistol with a cruciform trigger bar that can be readily converted by hand or with common household tools into a machinegun by the installation or attachment of a pistol converter, as specified, and “pistol converter” as any device or instrument that, when installed in or attached to the rear of the slide of a semiautomatic pistol, replaces the backplate and interferes with the trigger mechanism and thereby enables the pistol to shoot automatically more than one shot by a single function of the trigger. The bill would make a violation of these provisions punishable by a fine, a 2nd violation punishable by a fine that may result in a suspension or revocation of the dealer’s license and removal from certain centralized lists maintained by the Department of Justice, and a 3rd violation punishable as a misdemeanor that shall result in the revocation of the dealer’s license and removal from certain centralized lists.

Existing law prohibits the manufacture, sale, possession, or transportation of a machinegun, except as authorized. A violation of these prohibitions is punishable as a felony.

This bill would expand the above definition of “machinegun” to include any machinegun-convertible pistol equipped with a pistol converter and, thus, prohibit the manufacture, sale, possession, or transportation of a machinegun-convertible pistol equipped with a pistol converter.

Existing law, subject to certain exceptions, generally makes it an offense to manufacture or sell an unsafe handgun, as defined, and requires the Department of Justice to compile a roster listing all of the handguns that have been tested and determined not to be unsafe handguns. Existing law establishes criteria for determining if a handgun is an unsafe handgun, including, for firearms manufactured after a certain date and not already listed on the roster, the lack of a chamber load indicator and a magazine disconnect mechanism.

For any pistol listed on the roster on January 1, 2026, that was not subject to the above-described requirements to be on the list because it was submitted for testing before specified dates, that is thereafter only modified to change the design features that brought the pistol within the definition of a machinegun-convertible pistol, and that is submitted to an independent certified laboratory for testing pursuant to the above-described testing provisions before January 1, 2027, this bill would authorize that pistol to be submitted for testing and added to the roster without meeting those requirements.

Sponsors

Sponsors by party (alphabetical): Democratic 17

“Support” is shown only as formal sponsorship recorded by the legislature. Roll-call votes are available on the official bill page.

Recent official actions

1. October 10, 2025Chaptered by Secretary of State - Chapter 572, Statutes of 2025.
2. October 10, 2025Approved by the Governor.
3. September 24, 2025Enrolled and presented to the Governor at 3 p.m.
4. September 13, 2025Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 54. Noes 16. Page 3506.).
5. September 13, 2025Assembly Rule 63 suspended. (Page 3484.)
6. September 13, 2025Joint Rules 61(a)(14) and 51(a)(4) suspended. (Ayes 59. Noes 20. Page 3413.)
7. September 13, 2025In Assembly. Concurrence in Senate amendments pending.
8. September 12, 2025Read third time. Passed. Ordered to the Assembly. (Ayes 29. Noes 9. Page 2964.).
9. September 10, 2025Read second time. Ordered to third reading.
10. September 9, 2025Read third time and amended. Ordered to second reading.
11. September 9, 2025Joint Rule 61(a)(13) suspended. (Ayes 28. Noes 8. Page 2568.)
12. September 2, 2025Read second time. Ordered to third reading.