27 States Take on Supreme Court Over 2A Rights

A coast-to-coast coalition is asking the U.S. Supreme Court to step into one of the most consequential Second Amendment fights of the decade: whether states can ban so-called “large-capacity” magazines that hold more than ten rounds. As NonStop Local’s Anita Hollier reported, Montana joined attorneys general from 27 states to challenge California’s magazine ban after the Ninth Circuit upheld it in March. Gun-rights commentator Jared Yanis, host of Guns & Gadgets, framed the move more bluntly: the states are telling the justices to “get their ass in gear” and correct what they view as a constitutional misfire by the lower court.

What Sparked The Fight

At the center is California’s long-running restriction on magazines over ten rounds, a law supporters argue is necessary to curb the lethality of mass shootings. The Ninth Circuit recently blessed that policy, creating a direct clash with how many read recent Supreme Court precedent. Hollier notes the coalition says these magazines are commonly owned for lawful self-defense, hunting, and sport; banning them, they argue, is not a fine-tuning of regulation but a flat prohibition of ordinary gear millions already possess.

Montana Joins A 27-State Coalition

Hollier’s report confirms Montana is in, alongside states like Idaho and Wyoming, with a broader roster that, according to Jared Yanis, includes Alabama, Alaska, Arkansas, Florida, Georgia, Iowa, Indiana, Kansas, Kentucky, Louisiana, Mississippi, Missouri, Nebraska, New Hampshire, North Dakota, Ohio, Oklahoma, South Carolina, South Dakota, Tennessee, Texas, Utah, West Virginia, Wyoming – and even the Arizona Legislature. It’s an unmistakable signal: this is no parochial squabble. It’s a federalism-level challenge over where Second Amendment limits really lie.

What The States Are Asking The Court To Do

Per Yanis’s breakdown, the coalition filed an amicus brief urging the Supreme Court to grant certiorari in Duncan v. Bonta and reverse the Ninth Circuit. The ask is simple to say and hard to overstate: declare that magazines above ten rounds are protected by the Second Amendment because they are widely owned and used for lawful purposes, and that California’s ban can’t survive that constitutional reality.

The Legal Playbook: Heller And Bruen

Yanis emphasizes the two modern pillars here: Heller (2008) and Bruen (2022). Heller recognized an individual right to keep arms commonly used for lawful purposes; it also rejected bans on “entire classes” of arms in common use by law-abiding citizens. Bruen added a clarifying test: a gun regulation must be consistent with the text of the Second Amendment and with the historical tradition of firearm regulation in the United States. The states say California fails both prongs – textually and historically.

Are Magazines “Arms” In Common Use?

On the “common use” point, Yanis stresses that so-called “standard-capacity” magazines (more than ten rounds for many platforms) are everywhere in America. Even setting numbers aside, anyone who owns factory-configured modern pistols or rifles knows ten rounds is often below standard. From my vantage point, that matters: if the market has long sold a product as the default configuration and millions have purchased it for ordinary use, the commonality question isn’t speculative – it’s visible at every gun counter in the country.

The Historical-Tradition Hurdle

Bruen demands historical analogues for modern regulations. Yanis argues California leans on shaky comparators – like 19th-century Bowie knife and trap-gun restrictions – that don’t map cleanly onto bans of widely owned, detachable magazines. I agree the historical fit is thin. The Founding-to-Reconstruction record shows regulation of dangerous and unusual weapons, not outright bans on common arms or their integral feeding devices. If magazines are deemed part of the protected “arm,” the historical tradition cutout narrows considerably.

Public Safety Claims Versus Constitutional Limits

Hollier fairly notes that supporters of California’s law view it as an important step against gun violence. Historically, courts gave such public-safety arguments heavy weight under “means-end” scrutiny. But Bruen moved away from balancing tests in this context. Yanis contends the Ninth Circuit effectively smuggled that balancing back in. My take: public safety is vital, but constitutional analysis after Bruen must anchor in text and history. If a state wants to restrict something commonly possessed, it bears a steep historical burden that policy preferences alone cannot meet.

Why This Case Reaches Far Beyond California

Hollier points out that Washington State enacted its own ten-round cap in 2022 and that a local gun shop is already petitioning to overturn it. That’s the bigger picture: at least a half-dozen states have mirroring limits. A Supreme Court ruling that strikes California’s law would almost certainly destabilize similar statutes elsewhere; a ruling that blesses it could entrench them and invite more. Either way, Duncan is the domino many are watching.

How The Ninth Circuit’s Ruling Became The Focal Point

The Ninth Circuit has ping-ponged this issue for years. After Bruen, the Supreme Court sent several Second Amendment cases back to the circuits to be reconsidered under the new standard. California’s magazine case made the roundtrip and, as Hollier notes, came back with the Ninth Circuit upholding the ban in March. Yanis characterizes that as a misapplication of Bruen. Whether you agree or not, the conflict between circuits on how to apply text-and-history review was practically an engraved invitation for the Supreme Court to step back in.

The Range Of Outcomes The Justices Could Choose

Yanis sketches multiple paths. The Court could take the case and strike down capacity caps, effectively establishing that bans on commonly possessed magazines violate the Second Amendment. It could take the case and issue a narrower ruling, perhaps hobbling – but not outright eliminating – such laws. Or it could deny review, leaving the Ninth Circuit’s decision in place and deepening a regional split on fundamental rights. My view: with this many states lined up and a recurring conflict over Bruen’s method, a clear signal from the justices would do the country a service.

What To Watch In The Months Ahead

Expect a wave of amicus briefs from scholars, law-enforcement groups, and civil-rights organizations on both sides if the Court grants review. Watch for how the justices frame “common use” (numbers? market default? lawful purpose?) and how tightly they police the historical analogue requirement. As Hollier underscores, the coalition believes these magazines sit squarely within ordinary, lawful American gun ownership. As Yanis urges, the Supreme Court now has a chance to say so plainly – or to explain why not – under the rules it set in Bruen. Either answer will reshape the Second Amendment landscape far beyond California’s borders.