No. 25-198

Virginia Duncan, et al. v. Rob Bonta, Attorney General of California

Lower Court: Ninth Circuit
Docketed: 2025-08-19
Status: Pending
Type: Paid
Amici (6)Relisted (7) Experienced Counsel
Tags: ammunition-ban common-use firearms-regulation property-rights second-amendment takings-clause
Key Terms:
SecondAmendment Takings DueProcess FifthAmendment Securities JusticiabilityDoctri
Latest Conference: 2026-02-20 (distributed 7 times)
Question Presented (AI Summary)

Whether a ban on commonly owned ammunition feeding devices violates the Second Amendment and whether dispossessing citizens of lawfully acquired property without compensation violates the Takings Clause

Question Presented (from Petition)

This Court held in District of Columbia v. Heller , 554 U.S. 570 (2008), that stat es may not ban arms that “law-abiding citizens” “typica lly possess[] … for lawful purposes.” Id. at 625. And it reiterated in New York State Rifle & Pistol Association, Inc. v. Bruen , 597 U.S. 1 (2022), that “the Second Amendment protects the possession and use of weapons that are ‘in common use at the time.’” Id. at 21 (quoting Heller , 554 U.S. at 627). California nonetheless persists in banning feeding devices capable of holding more than ten rounds of ammunition, even though tens of millions of law-abiding Americans have long lawfully owned hundreds of millions of th ese devices as integral components of legal firearms. Adding insult to injury, California’s ban applies retrospectively, requiring citizens to dispossess themse lves of lawfully acquired property without any compensation from the state. This Court previously GVR’d in light of Bruen , but rather than follow this Court’s marching orders, a divided en banc panel once again upheld the ban. In doing so, the Ninth Circuit not only doubled down on its preBruen precedent, but reached the remarkable conclusion that California’s sweeping ban on common arms does not even implicate the Second Amendment. The questions presented are: 1. Whether a ban on the possession of exceedingly common ammunition feeding devices violates the Second Amendment. 2. Whether a law dispossessing citizens, without compensation, of property th at they lawfully acquired and long possessed without incident violates the Takings Clause.

Docket Entries

2026-02-13
DISTRIBUTED for Conference of 2/20/2026.
2026-01-20
DISTRIBUTED for Conference of 1/23/2026.
2026-01-12
DISTRIBUTED for Conference of 1/16/2026.
2026-01-05
DISTRIBUTED for Conference of 1/9/2026.
2025-12-08
DISTRIBUTED for Conference of 12/12/2025.
2025-11-18
DISTRIBUTED for Conference of 12/5/2025.
2025-11-12
Rescheduled.
2025-11-05
Reply of petitioners Virginia Duncan, et al. filed. (Distributed)
2025-11-05
Reply of Virginia Duncan, et al. submitted.
2025-11-05
DISTRIBUTED for Conference of 11/21/2025.
2025-10-20
Brief of respondent Bonta, Att'y Gen. of CA in opposition filed.
2025-10-20
Brief of Bonta, Att'y Gen. of CA in opposition submitted.
2025-09-18
Brief amicus curiae of National Shooting Sports Foundation, Inc. filed.
2025-09-18
Brief amici curiae of Montana, et al. filed.
2025-09-18
Brief amici curiae of Gun Owners of America, et al. filed.
2025-09-18
Brief amicus curiae of National Association for Gun Rights filed.
2025-09-18
Amicus brief of Gun Owners of America, Gun Owners Foundation, Gun Owners of California, Heller Foundation, Coalition of New Jersey Firearm Owners, Tennessee Firearms Association, Tennessee Firearms Foundation, Virginia Citizens Defense League, Virginia Citizens Defense Foundation, America's Future, U.S. Constitutional Rights Legal Defense Fund, and Conservative Legal Defense and Education Fund submitted.
2025-09-18
Amicus brief of State of Montana, et al. submitted.
2025-09-18
Amicus brief of National Shooting Sports Foundation, Inc. submitted.
2025-09-18
Amicus brief of National Association for Gun Rights submitted.
2025-09-17
Brief amici curiae of National African American Gun Association, Inc., et al. filed.
2025-09-17
Amicus brief of National African American Gun Association, Inc.; Asian Pacific American Gun Owners Association; Chris Cheng; DC Project Foundation, Inc.; Operation Blazing Sword, Inc.; Gabriela Franco; and The Liberal Gun Club submitted.
2025-09-12
Brief amici curiae of Second Amendment Foundation, et al. filed.
2025-09-12
Amicus brief of Second Amendment Foundation, The Second Amendment Law Center, and Minnesota Gun Owners Caucus submitted.
2025-08-21
Motion to extend the time to file a response is granted and the time is extended to and including October 20, 2025.
2025-08-20
Motion to extend the time to file a response from September 18, 2025 to October 20, 2025, submitted to The Clerk.
2025-08-20
Motion of Bonta, Att'y Gen. of CA for an extension of time submitted.
2025-08-15
Petition for a writ of certiorari filed. (Response due September 18, 2025)
2025-07-11
Application (24A1191) granted by Justice Kagan extending the time to file until August 17, 2025.
2025-07-03
Application (24A1191) to extend further the time from July 18, 2025 to August 17, 2025, submitted to Justice Kagan.
2025-06-05
Application (24A1191) granted by Justice Kagan extending the time to file until July 18, 2025.
2025-05-30
Application (24A1191) to extend the time to file a petition for a writ of certiorari from June 18, 2025 to July 18, 2025, submitted to Justice Kagan.

Attorneys

Asian Pacific American Gun Owners Association
Scott Charles AllanRenzulli Law Firm, LLP, Amicus
Bonta, Att'y Gen. of CA
Mica Louise MooreCalifornia Department of Justice, Respondent
Mica Louise MooreCalifornia Department of Justice, Respondent
Chris Cheng
Scott Charles AllanRenzulli Law Firm, LLP, Amicus
DC Project Foundation, Inc.
Scott Charles AllanRenzulli Law Firm, LLP, Amicus
Gabriela Franco
Scott Charles AllanRenzulli Law Firm, LLP, Amicus
Gun Owners of America, Gun Owners Foundation, Gun Owners of California, Heller Foundation, Coalition of New Jersey Firearm Owners, Tennessee Firearms Association, Tennessee Firearms Foundation, Virginia Citizens Defense League, Virginia Citizens Defense F
Jeremiah Lee MorganWilliam J. Olson, P.C., Amicus
Jeremiah Lee MorganWilliam J. Olson, P.C., Amicus
National African American Gun Association, Inc.
Scott Charles AllanRenzulli Law Firm, LLP, Amicus
Scott Charles AllanRenzulli Law Firm, LLP, Amicus
National African American Gun Association, Inc.; Asian Pacific American Gun Owners Association; Chris Cheng; DC Project Foundation, Inc.; Operation Blazing Sword, Inc.; Gabriela Franco; and The Liberal Gun Club
Scott Charles AllanRenzulli Law Firm, LLP, Amicus
National Association for Gun Rights
Barry Kevin ArringtonArrington Law Firm, Amicus
Barry Kevin ArringtonArrington Law Firm, Amicus
National Shooting Sports Foundation, Inc.
Noel John FranciscoJones Day, Amicus
Noel John FranciscoJones Day, Amicus
Operation Blazing Sword, Inc.
Scott Charles AllanRenzulli Law Firm, LLP, Amicus
Second Amendment Foundation, The Second Amendment Law Center, and Minnesota Gun Owners Caucus
Konstadinos T. MorosSecond Amendment Foundation, Amicus
Konstadinos T. MorosSecond Amendment Foundation, Amicus
State of Montana, et al.
Christian Brian CorriganMontana Department of Justice, Amicus
Christian Brian CorriganMontana Department of Justice, Amicus
The Liberal Gun Club
Scott Charles AllanRenzulli Law Firm, LLP, Amicus
Virginia Duncan, et al.
Erin E. MurphyClement & Murphy, PLLC, Petitioner
Erin E. MurphyClement & Murphy, PLLC, Petitioner