ACTION:
____________________________
Clerk/Secretary
Department: City Manager Item No: C6
Prepared by: London Adams, Management Analyst Meeting Date: August 12, 2025 Approved by:
Kathy Valdez, City Clerk
John Conley, City Manager Agenda Location: Consent Calendar
SUBJECT: SUPPORT OF CALIFORNIA ASSEMBLY BILL 1127
RECOMMENDATION: Adopt City Council Resolution No. 2025- , supporting California Assembly Bill 1127.
CORRELATION TO CITY COUNCIL GOALS: Public Safety.
PRIOR ACTION: None.
PRIOR COMMUNITY SAFETY COMMISSION ACTION: On June 12, 2025, recommend that the City Council send a letter of support for AB 1127 (Vote: 6-0).
STATEMENT ON THE SUBJECT: As part of its crime reduction plan, the Community Safety Commission conducts a biannual review of proposed state and federal legislation related to firearms, gang activity, and criminal offenses. The Commission then provides policy recommendations to the City Council regarding whether to support, oppose, or remain neutral on each bill.
At the request of the Community Safety Commission, this item is being placed on the Consent Calendar for City Council consideration to adopt a resolution in support of Assembly Bill (AB) 1127.
AB 1127, introduced in the 2025- 2026 California legislature regular session by Assemblymembers Jesse Gabriel and Catherine Stefani, seeks to prohibit the possession, sale, and distribution of do-it-yourself (DIY) machine gun conversion devices—commonly referred to as “Glock switches” or “auto sears.” These illegal parts can conver t a semi -automatic handgun into a fully automatic weapon capable of firing up to 1,200 rounds per minute. Their use has been linked to an increase in gun violence and presents a significant threat to public safety, particularly in cases involving gang-related crimes.
The bill aims to close existing loopholes by banning not only the devices themselves but also firearms that are easily convertible into machine guns. By doing so, it would require manufacturers to redesign weapons in ways that prevent easy or unauthorized modification. This is a direct response to the growing prevalence of these devices in criminal cases across the country, with law enforcement agencies seizing them in increasing numbers.
Several local governments have expressed support, including the City of Alameda, City of Goleta, and City of Santa Rosa. Additional support comes from elected officials such as Mayor Kate Colin (San Rafael),
AGENDA
REPORT
CITY COUNCIL
COMMUNITY DEVELOPMENT COMMISSION
SUCCESSOR AGENCY
BUENA SANITATION DISTRICT
JOINT POWERS FINANCING AUTHORITY
MEETING DATE: August 12, 2025 PAGE 2
SUBJECT: SUPPORTING CALIFORNIA ASSEMBLY BILL 1127
Mayor Martha Guerrero (West Sacramento), Mayor Michael Vargas (Perris), Mayor Chelsea Byers (West Hollywood), and Mayor Paula Perotte (Goleta).
Cal Cities has not taken a position on AB 1127 and appears likely to remain in a “watch” posture.
The San Diego Sheriff’s Office is currently monitoring AB 1127. While it has not endorsed the bill, it remains engaged in following its progress and potential impact on regional public safety.
As of July 24, 2025, the bill passed the State Assembly on June 6, 2025. In the State Senate, it was approved by the Senate Judiciary Committee on July 1 (4 –1) and received a “do pass” recommendation from the Senate Appropriations Committee on July 15 (11–2). It is now scheduled for a public hearing in the Senate Appropriations Committee on August 18, 2025, at 10 a.m., following the Legislature’s summer recess.
FISCAL IMPACT: There is no direct fiscal impact with this recommendation.
EXHIBITS:
1. City Council Resolution No. 2025- , supporting California Assembly Bill 1127
2. AB 1127 bill text
00029213 7
RESOLUTION NO. 2025-
A RESOLUTION OF THE CITY COUNCIL OF THE CHARTERED CITY OF VISTA, CALIFORNIA, SUPPORTING CALIFORNIA ASSEMBLY BILL 1127 The City Council of the City of Vista does resolve as follows:
1. Findings. The City Council hereby finds and declares the following:
A. As part of its adopted crime reduction plan, the Community Safety Commission conducts a biannual review of proposed state and federal legislation related to firearms, gang activity, and criminal offenses, and provides recommendations to the City Council.
B. Assembly Bill 1127, introduced by Assemblymembers Jesse Gabriel and Catherine Stefani, seeks to prohibit the possession, sale, and distribution of DIY machine gun conversion devices—commonly known as “Glock switches” or “auto sears”—which convert semi-automatic handguns into fully automatic weapons.
C. These illegal devices pose a growing threat to public safety and have been increasingly linked to gang-related crimes and gun violence across the country.
D. AB 1127 aims to close enforcement loopholes by banning both the devices and firearms that can be easily modified into machine guns, thereby reducing the availability and use of these dangerous modifications.
E. The San Diego Sheriff’s Office is monitoring the bill’s progress in the State Legislature. AB 1127 passed the State Assembly on June 6, 2025, and is currently under consideration in the State Senate.
F. On June 12, 2025 the City of Vista’s Community Safety Commission voted unanimously to recommend that the City Council support AB 1127 (Vote: 6-0).
2. Action.
A. The City Council supports California Assembly Bill 1127.
B. The City Council authorizes the City Manager or his/her designee to author and submit a letter of support for California Assembly Bill 1127 and to take any other reasonably appropriate actions to support this bill becoming law.
[Continued on page 2]
RESOLUTION NO. 2025-
CITY COUNCIL OF THE CHARTERED CITY OF VISTA
PAGE 2
00029213 7EXH1_ City Council Resolution No. 2025- , supporting California Assembly Bill 1127
3. Adoption. PASSED AND ADOPTED at a meeting of the City Council of the City of Vista held on August 12, 2025, by the following vote:
AYES:
NOES:
ABSTAIN:
APPROVED AS TO FORM:
WALTER CHUNG, CITY ATTORNEY
By:
APPROVED
Walter C. Chung
20250730160623
JOHN B. FRANKLIN, MAYOR
ATTEST:
KATHY VALDEZ, CITY CLERK
By:
ASSEMBLY BILL NO. 1127
AMENDED IN SENATE JULY 03, 2025
AMENDED IN SENATE JUNE 19, 2025
AMENDED IN ASSEMBLY APRIL 10, 2025
AMENDED IN ASSEMBLY MARCH 28, 2025
CALIFORNIA LEGISLATURE— 2025–2026 REGULAR SESSION
Introduced by Assembly Members Gabriel and Stefani
(Principal coauthors: Assembly Members Gipson and Wicks) (Coauthors: Assembly Members Bauer-Kahan, Berman, Bryan, Connolly, Mark González, Kalra, Ortega, Petrie-Norris, and Quirk-Silva)
February 20, 2025
An act to amend Section 3273.50 of the Civil Code, and to amend Section 16880 of, and to add Sections 16885, 17015, 27595, and 27595.1 to, the Penal Code, relating to firearms.
LEGISLATIVE COUNSEL'S DIGEST
AB 1127, as amended, Gabriel. Firearms: converter pistols.
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 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.
This bill would make these provisions severable.
By creating a new crime and expanding the application of an existing crime, this bill would create a state- mandated local program.
The California Constitution requires the state to reimburse local agencies and school districts for certain costs mandated by the state. Statutory provisions establish procedures for making that reimbursement.
This bill would provide that no reimbursement is required by this act for a specified reason.
Digest Key
Vote: majority Appropriation: no Fiscal Committee: yes Local Program: yes Bill Text
THE PEOPLE OF THE STATE OF CALIFORNIA DO ENACT AS
FOLLOWS:
SECTION 1. Section 3273.50 of the Civil Code is amended to read:
3273.50. As used in this title, the following definitions apply:
(a) “Ammunition” has the same meaning as provided in subdivision (b) of Section 16150 of the Penal Code. (b) “Firearm” has the same meaning as provided in subdivisions (a) and (b) of Section 16520 of the Penal Code. (c) “Firearm accessory” means an attachment or device designed or adapted to be inserted into, affixed onto, or used in conjunction with a firearm that is designed, intended, or functions to alter or enhance the firing capabilities of a firearm, the lethality of the firearm, or a shooter’s ability to hold and use a firearm. (d) “Firearm-related product” means a firearm, ammunition, a firearm precursor part, a firearm component, firearm manufacturing machine, and a firearm accessory that meets any of the following conditions:
(1) The item is sold, made, or distributed in California. (2) The item is intended to be sold or distributed in California. (3) The item is or was possessed in California and it was reasonably foreseeable that the item would be possessed in California.
(e) “Firearm precursor part” has the same meaning as provided in Section 16531 of the Penal Code. (f) “Firearm industry member” shall mean a person, firm, corporation, company, partnership, society, joint stock company, or any other entity or association engaged in the manufacture, distribution, importation, marketing, wholesale sale, or retail sale of firearm-related products. (g) “Firearm manufacturing machine” means a three-dimensional printer, as defined in Section 29185 of the Penal Code, or CNC milling machine that, as described in that section, is marketed or sold as, or reasonably designed or intended to be used to manufacture or produce a firearm. (h) “Reasonable controls” means reasonable procedures, acts, or practices that are designed, implemented, and enforced to do the following:
(1) Prevent the sale or distribution of a firearm-related product to a straw purchaser, a firearm trafficker, a person prohibited from possessing a firearm under state or federal law, or a person who the firearm industry member has reasonable cause to believe is at substantial risk of using a firearm-related product to harm themselves or another or of possessing or using a firearm-related product unlawfully. (2) Prevent the loss or theft of a firearm-related product from the firearm industry member. (3) Ensure that the firearm industry member complies with all provisions of California and federal law and does not otherwise promote the unlawful manufacture, sale, possession, marketing, or use of a firearm-related product.
(4) Prevent the installation and use of a pistol converter, as defined in Section 17015 of the Penal Code, with a firearm.
SEC. 2. Section 16880 of the Penal Code is amended to read:
16880. (a) As used in this part, “machinegun” means any weapon that shoots, is designed to shoot, or can readily be restored to shoot, automatically more than one shot, without manual reloading, by a single function of the trigger.
(b) The term “machinegun” also includes the frame or receiver of any weapon described in subdivision (a), any part designed and intended solely and exclusively, or combination of parts designed and intended, for use in converting a weapon into a machinegun, and any combination of parts from which a machinegun can be assembled if those parts are in the possession or under the control of a person. (c) The term “machinegun” also includes any weapon deemed by the federal Bureau of Alcohol, Tobacco, Firearms and Explosives as readily convertible to a machinegun under Chapter 53 (commencing with Section 5801) of Title 26 of the United States Code.
(d) The term “machinegun” also includes any machinegun-convertible pistol equipped with a pistol converter, as defined in Section 17015.
SEC. 3. Section 16885 is added to the Penal Code, to read:
16885. (a) As used in this part, “machinegun-convertible pistol” means any semiautomatic pistol with a cruciform trigger bar that can be readily converted by hand or with common household tools, as defined in Section 4082 of Title 11 of the California Code of Regulations, into a machinegun by the installation or attachment of a pistol converter as a replacement for the slide’s backplate without any additional engineering, machining, or modification of the pistol’s trigger mechanism.
(b) A machinegun-convertible pistol does not include a hammer-fired semiautomatic pistol or striker-fired semiautomatic pistol lacking a cruciform trigger bar, which instead has a trigger bar that is shielded from interference by a pistol converter.
(c) A polymer notch or other piece of polymer molded into the rear of the pistol frame does not prevent ready conversion into a machinegun and will not prevent a pistol from qualifying under this definition.
SEC. 4. Section 17015 is added to the Penal Code, to read:
17015. “Pistol converter” means 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. A pistol converter includes, but is not limited to, a pistol converter manufactured using a three-dimensional printer, as defined in Section 29185.
SEC. 5. Section 27595 is added to the Penal Code, to read:
27595. (a) Except as provided in subdivision (c), commencing on January 1, 2026, a firearms dealer licensed pursuant to Sections 26700 to 26920, shall not sell, offer for sale, exchange, give, transfer, or deliver any semiautomatic machinegun-convertible pistol, as defined in Section 16885. (b) (1) A violation of subdivision (a) shall be punishable by a fine of not more than one thousand dollars ($1,000).
(2) A second violation of subdivision (a) shall be punishable by a fine of not more than five thousand dollars ($5,000) and may result in the suspension or revocation of the dealer’s license issued under Sections 26700 to 26920, inclusive, and removal of the firearms dealer from any centralized list maintained by the Department of Justice pursuant to Sections 26715, 28450, and 29060. (3) A third violation of subdivision (a) is a misdemeanor and shall result in the revocation of the dealer’s license issued under Sections 26700 to 26920, inclusive, and removal of the firearms dealer from any centralized list maintained by the Department pursuant to Sections 26715, 28450, and 29060. (c) This section shall not apply to any of the following:
(1) A machinegun-convertible pistol delivered to a firearms dealer prior to January 1, 2026. (2) The sale of a machinegun-convertible pistol to a any of the following entities for lawful use in the discharge of their official duties:
(A) A police department, sheriff’s office, probation department, marshal’s office, district attorney’s office, the California Highway Patrol, the Department of Justice, the Department of Corrections and Rehabilitation, or the military or naval forces of this state or of the United States for use in the discharge of their official duties. Rehabilitation.
(B) Any state agency listed in paragraph (6) or paragraph (7) of subdivision (b) of Section 32000. (C) The military or naval forces of this state or of the United States. (3) A private party to private party transaction conducted through a licensed firearms dealer pursuant to Chapter 5 (commencing with Section 28050).
(4) A transfer of a machinegun-convertible pistol to a gunsmith or other qualified entity for service or repair. (5) The sale or transfer of a machinegun-convertible pistol to a firearms dealer licensed pursuant to Sections 26700 to 26920, inclusive, or to federally licensed firearms manufacturers or dealers outside California. (6) A transfer of a machinegun-convertible pistol back to a private party after temporary safekeeping storage pursuant to Section 26892.
(7) A transfer of a machinegun-convertible pistol back to a private party after a period of temporary prohibition pursuant to Section 29830.
(8) A transfer of a machinegun-convertible pistol to any forensic laboratory or forensic laboratory employee, while on duty and acting within the scope and course of employment.
SEC. 6. Section 27595.1 is added to the Penal Code, to read:
27595.1. The Department of Justice is authorized to adopt regulations to implement Section 27595. Regulations adopted pursuant to Section 27595 are exempt from the Administrative Procedure Act (Chapter 3.5 (commencing with Section 11340) of Part 1 of Division 3 of Title 2 of the Government Code).
SEC. 7. If any section, subsection, sentence, or clause of this act is for any reason declared unconstitutional, invalid, or unenforceable by any court of competent jurisdiction, such decision shall not affect the constitutionality, validity, or enforceability of the remaining portions of this act or any part thereof. The Legislature hereby declares that it would have adopted this act notwithstanding the unconstitutionality, invalidity, or unenforceability of any one or more of its sections, subsections, sentences, or clauses.
SEC. 8. No reimbursement is required by this act pursuant to Section 6 of Article XIII B of the California Constitution because the only costs that may be incurred by a local agency or school district will be incurred because this act creates a new crime or infraction, eliminates a crime or infraction, or changes the penalty for a crime or infraction, within the meaning of Section 17556 of the Government Code, or changes the definition of a crime within the meaning of Section 6 of Article XIII B of the California Constitution.