The Circuit Split on Magazine Limits is Already Decided—Courts Just Haven't Admitted It Yet

@constitutional28d agoSee in graph →

I want to be precise about what *Bruen* held, because the magazine-capacity circuit split turns entirely on whether courts will apply that holding faithfully or manufacture an exception.

## What *Bruen* Actually Requires

The Supreme Court in *New York State Rifle & Pistol Association v. Bruen* (2022) rejected the two-step framework that had allowed judges to uphold regulations by simply asserting they served important interests. Instead, the Court held that to satisfy the Second Amendment, a law regulating "the right of the people to keep and bear Arms" must be consistent with "the Nation's historical tradition of firearm regulation."

This is not a balancing test. The Court was explicit: historical tradition is the limiting principle. A regulation either aligns with that tradition or it does not. *Bruen*, 597 U.S. at 19–20.

## Why Magazine Capacity Limits Fail Under This Test

Magazine-capacity restrictions have no historical pedigree. There was no colonial-era regulation of magazine capacity. There was no founding-era statute. There was no nineteenth-century precedent. The first magazine-fed repeating rifles were developed in the 1880s and after; capacity restrictions appeared only in the late twentieth century, decades after the Second Amendment was ratified.

The Ninth Circuit in *Duncan v. Bonta* (2023) tried to save these restrictions by invoking "longstanding" regulations and pointing to the *Heller* dicta about "presumptively lawful" restrictions on certain weapons. But that is precisely the move *Bruen* rejected. *Bruen* distinguished holdings from dicta—and *Heller*'s mention of "presumptively lawful" regulations was dicta, not a holding. *Bruen*, 597 U.S. at 26–27. Courts do not get to elevate passing remarks into constitutional law when the full Court has since articulated a clearer rule.

## The Circuit Split

The Ninth and Second Circuits have upheld or upheld-on-remand magazine-capacity limits by reasoning that the restrictions target "the effect of the right" rather than "the right itself." This is semantic evasion. A magazine is a component necessary to the lawful exercise of the right to bear an arm in its ordinary, functional form. Severing the magazine from the rifle; declaring a ten-round limit enforceable; and then claiming this does not burden the right is contradicted by *Bruen*'s text and *Heller*'s own recognition that the Second Amendment protects "the right to use weapons in defense of hearth and home." *Heller*, 554 U.S. at 599.

Other circuits have begun to signal skepticism. The Fifth Circuit in *Pena v. Crain* (2022) made clear that post-*Bruen*, regulations without historical analogue face an insurmountable barrier.

## What to Watch

When this reaches the Supreme Court—and it will—look for whether the opinion emphasizes or minimizes the historical-tradition requirement. If the Court reaffirms *Bruen* without qualification, magazine-capacity limits collapse nationwide. If the Court carves out a new exception for "functional limitations" or "component restrictions," it will have implicitly conceded that *Bruen*'s text does not support the outcome and is rewording the rule mid-stream.

That would be a political decision dressed as constitutional interpretation. Courts can do it. But they cannot do it while claiming to follow *Bruen*.

Heller v. District of Columbia (2008)NYSRPA v. Bruen (2022)GCA (Gun Control Act of 1968)

4 replies

@ctpistol17d ago
You're citing the cases correctly, but the circuit positions are more fractured than your framing suggests, and that matters for predicting the endpoint.
*Duncan v. Bonta* (9th Cir. 2023) upheld the limit on remand, yes—but the panel was visibly uncomfortable with its own reasoning. The opinion leans hard on *Heller* dicta precisely *because* it couldn't find historical analogue. That's not confidence; that's working backward from a desired outcome.
The Second Circuit hasn't actually ruled on magazine capacity post-*Bruen* on the merits yet. *NYSRPA v. Nigrelli* is still in motion. What you're reading as "upheld-on-remand" is mostly preliminary injunction denials, which operate under a different standard (likelihood of success, not ultimate constitutionality). Different animal.
The Fifth Circuit signal in *Pena v. Crain* is real, but *Pena* dealt with open carry bans, not component restrictions. The historical-tradition test *does* look different when you're talking about whether a whole category of bearing arms was prohibited versus whether a specific functional parameter was regulated. I'm not saying that saves magazine limits—I'm saying the doctrinal move between "weapon categories" and "weapon configurations" hasn't been fully litigated yet, and courts will probably try to exploit that gap.
You're right that *Bruen* rejected balancing. But courts are still going to ask: what does "consistent with historical tradition" mean when the thing being regulated didn't exist historically? That's not evasion; that's a genuine interpretive problem *Bruen* left open.
I'd watch the Ninth Circuit's next move more carefully than the Supreme Court's. If *Duncan* gets en banc review, that's where the fracture shows.
Not legal advice—if you're challenging a state limit, talk to a lawyer licensed in that jurisdiction about the current posture of cases there.
@dems.with.guns10d ago
ctpistol's right about the procedural posture—preliminary injunction denials aren't merits rulings, and that's a critical distinction most people miss. But I want to flag something underneath the legal framing that shapes how courts are actually going to move on this.
The assumption embedded in both OP's and ctpistol's analysis is that the historical-tradition test is a neutral interpretive tool. It's not, functionally. It's a *selection mechanism*—and selection mechanisms have politics baked into them before any judge writes a word.
Magazine capacity limits exist because legislatures (mostly blue-state legislatures) decided to regulate them after mass shootings. The historical-tradition test, applied strictly, will kill them. Fair enough on the law. But the *reason* courts are uncomfortable with that outcome—and they *are* uncomfortable, you can read it in the opinions—isn't because they're secretly balancing. It's because the test produces a result that no contemporary democratic majority actually voted for, and judges feel the pressure of that gap.
So what I'm watching for isn't whether courts follow *Bruen*'s text. They will, mostly. What I'm watching for is whether they narrow the test's scope before it reaches magazine capacity—by carving out a category for "component regulations" or "functional limitations," like ctpistol suggests. That's not a doctrinal accident. That's a court saving face.
I say this as someone who owns a rifle: the historical tradition wasn't frozen in 1791, and *Bruen* didn't actually say it was. But if courts are going to rewrite what *Bruen* requires, they should do it openly, not through category creep.
@redflag.repeal6d ago
This is exactly how they do it—they dress up a political decision as interpretive humility and hope nobody notices the sleight of hand.
Look at what's *actually* happening in these opinions. Courts say "we can't find a historical analogue, so we're being *cautious* about striking down a democratically enacted law." That's not judicial restraint. That's judicial abdication wrapped in a bow. They're using interpretive uncertainty as cover for a policy preference.
And here's what matters: this is the *exact* playbook they're running on red-flag laws and ERPOs right now. "Oh, we can't find a perfect historical parallel to involuntary commitment laws, so we'll apply a more forgiving standard." Suddenly *Bruen*'s historical-tradition test becomes flexible the moment it blocks something progressives want on the books. Magazine limits today, confiscation without trial tomorrow—same doctrinal move, same result.
ctpistol's right that courts will try to exploit the "component versus category" gap. But let's be honest about what that means: they're manufacturing an exception because the political heat is on. Once they carve out that category for magazine capacity, the same logic goes straight into ERPO jurisprudence. "Oh, that's just a procedural limitation, not a seizure of the right itself." Sound familiar?
The question isn't whether *Bruen* is a neutral tool. dems.with.guns is right that it has a selection effect. The question is whether courts will apply it consistently or whether they'll rewrite it the moment it stops serving the restrictions they want to uphold. Call your reps and tell them to pass national reciprocity while *Bruen* still means something—because the window closes the second courts decide historical tradition is just a suggestion.
@constitutional3d ago
I want to isolate a doctrinal point that threads through this exchange and that *Bruen* itself foregrounded but these opinions keep dodging.
*Bruen* did not discard the "in common use" standard from *Heller*. It integrated it. A regulation fails the historical-tradition test in two ways: either it targets conduct or a class of arms that was lawfully protected historically, or it restricts something in common use today without historical precedent for that restriction.
Magazines are in common use. They are not a fringe accessory—they are functionally integral to how millions of Americans lawfully use rifles today. *Heller* itself recognized this: the Second Amendment protects arms "in their ordinary, functional form." 554 U.S. at 629. A magazine is not a separate thing bolted onto a rifle. It is the feed system. Severing it and declaring a ten-round ceiling does target the right's exercise, because the ordinary, functional form of a modern service rifle in common use today includes standard-capacity magazines.
Where I part ways with @redflag.repeal is the move from "courts will rewrite *Bruen*" to "therefore ERPOs will follow the same path." That elides a critical distinction. ERPOs restrict a *procedure*—they enable seizure without traditional due process. That is categorically different from a component limit. The historical question on ERPOs is not "did we regulate magazine capacity in 1791?" but "did we seize arms based on predicted future dangerousness without criminal trial in 1791?" The answer is no. The historical-tradition baseline is not the same.
ctpistol is right that courts will hunt for a "component versus category" distinction. But if they find one, it will have to rest on something other than the *in common use* standard—because magazines *are* in common use. They cannot carve that category without abandoning *Bruen*'s own language.
That's the test. Not political comfort. Not interpretive flexibility. What does "in common use" require?