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Supreme Court Review Sought in NRA-Backed Challenge to California’s Magazine Ban

Friday, August 15, 2025

Supreme Court Review Sought in NRA-Backed Challenge to California’s Magazine Ban

Today, a Petition for Certiorari was filed asking the U.S. Supreme Court to hear Duncan v. Bonta, a case—backed by the National Rifle Association and California Rifle & Pistol Association—challenging California’s prohibition on magazines capable of holding over 10 rounds.

“Tens of millions of Americans lawfully own hundreds of millions of the magazines that California bans,” said Doug Hamlin, NRA Executive Vice President & CEO. “The Supreme Court should take this case to vindicate the rights of Californians and reaffirm that the Second Amendment prohibits the government from banning common arms.”

Since 2000, California has prohibited the manufacture, import, sale, and transfer of “large-capacity magazines,” defined by the state as “any ammunition feeding device with the capacity to accept more than 10 rounds.” In 2016, the state banned the possession of such magazines, and required any lawfully possessed magazine to be surrendered, permanently altered, or destroyed.

This lawsuit was filed before the possession ban took effect, alleging that it violates the Second Amendment and the Fifth Amendment’s Takings Clause. 

After nearly a decade of litigation, in March of this year, the en banc Ninth Circuit upheld the ban in a 7-4 decision. The majority concluded that magazines are “accessories” rather than “arms,” and thus not covered by the Second Amendment. As for the takings claim, the majority dismissed it based on a prior ruling of the en banc Ninth Circuit in this case, which held that there was no Takings Clause violation.

The Petition for Certiorari emphasizes the need for the Supreme Court’s review. It explains that the Ninth Circuit’s ruling clearly contradicts the Supreme Court’s Second Amendment precedent—which establishes that common arms, including magazines owned by tens of millions of Americans, cannot be banned—and Fifth Amendment precedent—which establishes that a physical taking occurs whenever the government dispossesses someone of lawfully acquired property. The Petition further describes the confusion among lower courts on Second Amendment issues, including whether magazines are “arms,” and the need for the Court to clarify and reinforce its precedents.

“After nearly a decade of litigation, two en banc decisions, and a prior remand from the Supreme Court, this case is more than ready for the Court’s review,” said John Commerford, NRA-ILA Executive Director. “The people of California have endured long enough. It’s time to restore their constitutional rights.”

Please stay tuned to www.nraila.org for future updates on NRA-ILA’s ongoing efforts to defend your constitutional rights, and please visit www.nraila.org/litigation to keep up to date on NRA-ILA’s ongoing litigation efforts.

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Virginia: Anti-Gun Bills Headed to the Governor

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Sunday, March 8, 2026

Virginia: Anti-Gun Bills Headed to the Governor

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Letitia James & Co. Sue to Bring Federal Gun Control Back from the Dead

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Monday, March 9, 2026

Letitia James & Co. Sue to Bring Federal Gun Control Back from the Dead

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Monday, March 9, 2026

The Incremental Assault on the Second Amendment Continues in the States

State “assault weapons” ban legislation continues to gain traction in various jurisdictions this legislative session.

Virginia: Semi-Auto Ban Heads to Governor Spanberger's Desk

Monday, March 9, 2026

Virginia: Semi-Auto Ban Heads to Governor Spanberger's Desk

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Senator Mike Lee Introduces National Constitutional Carry Act

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Friday, March 6, 2026

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By George! Washington, D.C.’s Magazine Ban Invalidated by District’s Highest Court

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Monday, March 9, 2026

By George! Washington, D.C.’s Magazine Ban Invalidated by District’s Highest Court

Even as its formerly more liberty-loving neighbor, Virginia, goes down the tyrannical path of unconstitutional bans on firearms and magazines, residents of the nation’s capital last week gained a measure of relief from the District’s ...

Supreme Court Holds Oral Arguments in Marijuana Related Firearm Prohibition Case

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Monday, March 9, 2026

Supreme Court Holds Oral Arguments in Marijuana Related Firearm Prohibition Case

On March 2, the U.S. Supreme Court held oral arguments in U.S. v Hemani, a case concerning the federal firearm prohibition on marijuana users. 

Michigan: Constitutional Carry Legislation Introduced

Thursday, March 5, 2026

Michigan: Constitutional Carry Legislation Introduced

A package of pro-Second Amendment legislation has been introduced in the Michigan House. House Bills 5653–5657 would make Michigan the 30th state in the nation to recognize Constitutional Carry, allowing individuals who are legally permitted ...

Virginia: Gun Bill Updates As Crossover Deadline Arrives

Tuesday, February 17, 2026

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Today, February 17th is the legislative crossover deadline in Virginia, and any bills that have not left their chamber of origin by the end of the day are considered dead for the session.

Oregon: Senate Passes Ballot Measure 114 Bill

Friday, March 6, 2026

Oregon: Senate Passes Ballot Measure 114 Bill

Yesterday, the Senate passed an amended House Bill 4145, now engrossed as HB 4145 B. It will now return to the House for concurrence as amended.

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NRA ILA

Established in 1975, the Institute for Legislative Action (ILA) is the "lobbying" arm of the National Rifle Association of America. ILA is responsible for preserving the right of all law-abiding individuals in the legislative, political, and legal arenas, to purchase, possess and use firearms for legitimate purposes as guaranteed by the Second Amendment to the U.S. Constitution.