Targeted Bans on AR-15s and 30-Round Magazines Survive Bruen: “Particularly Dangerous Weapons” Tradition and the Limits of Facial Second Amendment Challenges

I. Introduction

The Seventh Circuit’s July 9, 2026 decision (captioned CALEB BARNETT, et al. v. K WAME RAOUL, Attorney General of the State of Illinois, et al., consolidated with Langley v. Kelly, Harrel v. Raoul, and Federal Firearms Licensees of Ill. v. Pritzker) addresses the constitutionality of Illinois’s 2023 Protect Illinois Communities Act (“the Act”), enacted after a mass shooting at a Chicago suburb’s Independence Day parade.

The Act broadly restricts “assault weapons” and “large capacity ammunition feeding devices” (including many semiautomatic rifles and magazines over specified capacities), but includes grandfather clauses—most notably allowing continued possession of preexisting assault weapons upon filing a free “endorsement affidavit,” and continued possession of preexisting large-capacity magazines without registration (subject to location restrictions).

Multiple plaintiffs (individual gun owners, market participants, and Second Amendment advocacy organizations) sued state and local officials under 42 U.S.C. § 1983, seeking declaratory and injunctive relief. After Bevis v. City of Naperville, 85 F.4th 1175 (7th Cir. 2023), vacated preliminary injunctions and held challengers unlikely to succeed, the Southern District of Illinois conducted a bench trial and then permanently enjoined the Act in its entirety. The State appealed.

The key issues on appeal were: (1) whether plaintiffs could sustain facial Second Amendment challenges to the Act’s operative prohibitions; (2) whether the Act’s application to AR-15s and thirty-round rifle magazines is constitutional under New York State Rifle & Pistol Ass'n v. Bruen, 597 U.S. 1 (2022); and (3) whether the Act’s endorsement affidavit (registration) requirement is constitutional.

II. Summary of the Opinion

The Seventh Circuit reversed the permanent injunction and remanded with instructions to enter judgment for defendants.

  • Facial-challenge holding: Plaintiffs pursued facial challenges to the Act’s core prohibitions, but did not (and in some instances could not) establish that “no set of circumstances exists under which” the provisions would be valid, as required by United States v. Rahimi, 602 U.S. 680, 693 (2024) (quoting United States v. Salerno, 481 U.S. 739, 745 (1987)). Their failure to address all regulated items (e.g., grenade launcher-equipped rifles; belts/drums above thirty rounds) defeated the requested statewide invalidation.
  • Merits (AR-15s and 30-round magazines): Assuming for purposes of decision that the items are “Arms” under Bevis v. City of Naperville, the court held the Act satisfies Bruen step two. Illinois’s restrictions align with “principles that underpin our regulatory tradition,” namely longstanding targeted restrictions on especially dangerous weapons. The court relied heavily on Bowie-knife-era regulations and related case law (e.g., Cockrum v. State, 24 Tex. 394 (1859); Aymette v. State, 21 Tenn. 154 (1840); Haynes v. State, 24 Tenn. 120 (1844)) as exemplars of historically accepted regulation of particularly dangerous arms.
  • “More nuanced approach” reinforcement: The court added that Bruen permits a more nuanced analogical analysis where “unprecedented societal concerns” and “dramatic technological changes” are implicated; it viewed AR-15s paired with large-capacity magazines as fitting that description, especially in relation to modern mass shootings.
  • Registration/endorsement affidavit: The endorsement affidavit was upheld as constitutional, analogized to “shall-issue” licensing systems approved in dicta by New York State Rifle & Pistol Ass'n v. Bruen.

Chief Judge Brennan dissented, arguing that District of Columbia v. Heller, 554 U.S. 570 (2008), protects arms “in common use” for self-defense and that AR-15s and standard thirty-round magazines fall squarely within that category; he contended the majority improperly dilutes the “dangerous and unusual” inquiry and undervalues the trial record.

III. Analysis

A. Precedents Cited

1. Bruen framework and its refinement in Rahimi

The opinion is explicitly anchored in New York State Rifle & Pistol Ass'n v. Bruen, which set out the now-controlling two-step method: (i) if the Second Amendment’s plain text covers the conduct, it is presumptively protected; (ii) the government must justify the regulation by demonstrating consistency with the Nation’s historical tradition of firearm regulation. The Seventh Circuit assumed step one in order to decide step two.

United States v. Rahimi plays two distinct roles:

  • Facial challenges: The court treated Rahimi as reaffirming the demanding “no set of circumstances” standard for facial invalidity, explicitly applying that standard to the plaintiffs’ attempt to enjoin the Act wholesale.
  • Analogical method: On the merits, the court leaned on Rahimi to reject the notion that modern regulations require “close founding-era comparators,” emphasizing Rahimi’s instruction that the proper inquiry is whether a modern restriction is “consistent with the principles that underpin our regulatory tradition.”

2. Heller, “dangerous and unusual” weapons, and “common use”

District of Columbia v. Heller provides the foundational propositions: (1) the Second Amendment secures an individual right centered on self-defense; (2) the right is not unlimited; and (3) there is an historical tradition of prohibiting “dangerous and unusual weapons,” which Heller cited when stating that M16 rifles “may be banned.”

The majority’s notable move is not to treat “common use” as dispositive immunity from regulation. It cited its own earlier decisions (Bevis v. City of Naperville and Friedman v. City of Highland Park, 784 F.3d 406 (7th Cir. 2015)) for the proposition that numbers alone should not control. It also observed that Bruen—even while recognizing handguns as in common use—still conducted an extended historical-analogues analysis, implying “common use” does not end the inquiry.

The dissent, by contrast, read Heller as establishing a stronger “common use” constraint and argued the majority effectively replaces “dangerous and unusual” with a less cabined “particularly dangerous” concept.

3. The court’s reliance on sister-circuit consensus

The Seventh Circuit highlighted that every circuit to confront post-Bruen bans on assault weapons and/or large-capacity magazines had upheld them, citing: Capen v. Campbell, 134 F.4th 660 (1st Cir. 2025); Ocean State Tactical, LLC v. Rhode Island, 95 F.4th 38 (1st Cir. 2024); Nat'l Ass'n for Gun Rts. v. Lamont, 153 F.4th 213 (2d Cir. 2025); Bianchi v. Brown, 111 F.4th 438 (4th Cir. 2024) (en banc); Duncan v. Bonta, 133 F.4th 852 (9th Cir. 2025) (en banc); and Hanson v. District of Columbia, 120 F.4th 223 (D.C. Cir. 2024).

While the panel disclaimed resting its decision on the avoidance of a circuit split, the “consensus” functioned as a legitimating backdrop, reinforcing that the historical-analogy approach it adopted is not idiosyncratic.

4. Facial-challenge doctrine and remedial limits

Beyond Rahimi/Salerno, the court also relied on broader skepticism toward facial invalidation and broad injunctions, citing Moody v. NetChoice, LLC, 603 U.S. 707 (2024), and Wash. State Grange v. Wash. State Republican Party, 552 U.S. 442 (2008). It further flagged that the district court’s universal injunction had become problematic after Trump v. CASA, Inc., 606 U.S. 831 (2025), though it deemed the issue moot given reversal on the merits.

Importantly, the court treated “facial challenge” rigorously as a claim about the validity of the challenged operative provisions across all applications, not merely as a vehicle for broad relief against the particular defendants. This placed a premium on challengers addressing all categories of regulated items within a provision.

5. Historical analogues and the Bowie knife line

The centerpiece of the court’s historical analysis is 19th-century regulation of Bowie knives and similar weapons, including statutes restricting carry (sometimes broadly) and imposing taxes or sales bans, supported by state-court decisions sustaining such regulations. The opinion explicitly cited: Cockrum v. State, 24 Tex. 394 (1859); Aymette v. State, 21 Tenn. 154 (1840); and Haynes v. State, 24 Tenn. 120 (1844), as well as Arkansas “journey” cases interpreting the scope of travel exceptions (Carr v. State, 34 Ark. 448 (1879); Hathcote v. State, 17 S.W. 721 (Ark. 1891)).

The dissent relied heavily on Nunn v. State, 1 Ga. 243 (1846), as emblematic of a constitutional rule protecting weapons commonly owned for self-defense. The majority minimized Nunn as both (i) too thin a foundation relative to broader practice and (ii) containing language (“arms of every description”) incompatible with Heller’s acceptance that some weapons (e.g., machine guns) may be banned.

6. Registration requirement as “shall-issue” analogue

For the endorsement affidavit, the court relied on its own earlier decision in Bevis v. City of Naperville and on Bruen’s dicta approving “shall-issue” licensing, also citing appellate support: Maryland Shall Issue v. Moore, 116 F.4th 211 (4th Cir. 2024), and McRorey v. Garland, 99 F.4th 831 (5th Cir. 2024).

B. Legal Reasoning

1. Procedural posture and the court’s narrowing to representative items

Although plaintiffs sought to invalidate the Act’s operative provisions facially, the court emphasized that facial relief requires showing the provisions are invalid in all their applications. Plaintiffs’ failure to litigate some applications (notably, the Act’s inclusion of rifle configurations with grenade launchers) meant they could not satisfy Rahimi/Salerno.

Nonetheless, the court proceeded to address the “heart of the dispute”—AR-15s and thirty-round rifle magazines—both because that is where the evidentiary record concentrated and because a decision would guide related ongoing litigation in Illinois.

2. Avoiding step-one entanglement; deciding on step two

Unlike Bevis v. City of Naperville—which had placed significant weight on an “Arms” inquiry tied to whether weapons are “exclusively or predominantly useful in military service”—this opinion assumed AR-15s and the magazines are “Arms” and moved directly to Bruen step two. This is a consequential institutional choice: it limits the decision’s dependence on contentious definitional lines about “military usefulness” and instead grounds the ruling in historical-analogy methodology as clarified by Rahimi.

3. Step two: “how” and “why” comparisons, plus “principles”

The court framed “relevantly similar” analogues around the “how” and “why” metrics from New York State Rifle & Pistol Ass'n v. Bruen.

  • How: The Act operates as a targeted restriction on specified weapons/magazines while leaving many other arms available (especially handguns). It applies categorically but includes exemptions (e.g., law enforcement) and includes grandfathering. The court also treated criminal penalties and indefinite duration as consistent with historical restrictions. It further characterized the self-defense burden as “minimal,” emphasizing record evidence (credited from the State’s expert) that rifles and high round counts are rarely used in defensive gun use.
  • Why: The court rejected “public safety” at a high level of generality, but accepted the narrower justification of protecting the public from weapons posing “a special danger.” That narrower justification was linked to historical rationales for regulating weapons understood as exceptionally lethal or associated with heightened threat.
  • Principles over exact matches: Drawing explicitly from United States v. Rahimi, the panel emphasized that step two is not “historical twin” hunting. It treated Bowie-knife regulation as revealing a broader historical principle of allowing special restrictions on especially dangerous weapons while leaving alternatives available.

4. Technological change and mass shootings: the “more nuanced approach”

The opinion added that even if historical comparators are not tight, Bruen anticipates “more nuanced” analogical reasoning when confronted with modern conditions. Here, the court described (i) the leap from single-shot muzzleloaders to semiautomatic rifles with detachable magazines and rapid reloading, and (ii) modern lone-actor mass shootings as an “unprecedented societal concern” enabled by those technological changes.

This portion functions as doctrinal reinforcement: it reduces the force of an argument from historical silence (“there were no AR-15 bans in 1791/1868”) by asserting that the specific modern combination of weapon capabilities and social harms could not have “preoccupied” founding/reconstruction legislators in the same way.

5. Endorsement affidavit: treating registration as a low-discretion “shall-issue” condition

The endorsement affidavit was upheld largely because it is (as the court described it) free, nondiscretionary, and ministerial—qualities that align it with “shall-issue” licensing. The court’s reasoning implies a meaningful constitutional distinction between (i) discretionary or burdensome registration schemes and (ii) standardized, low-friction registration tied to a grandfather clause.

C. Impact

1. Second Amendment litigation: strengthening the “principles” approach post-Rahimi

The decision is a notable application of Rahimi’s “principles” language in the contested context of assault-weapon and large-capacity magazine bans. By elevating the level of abstraction (from specific founding-era firearm analogues to a more general tradition of regulating weapons deemed exceptionally dangerous), the opinion may make it easier for governments to defend modern categorical restrictions—provided they are framed as targeted, leaving alternatives available, and justified as addressing a “special danger” rather than undifferentiated public safety.

2. Limits on facial challenges and remedial overbreadth

Independently of the Second Amendment merits, the court’s facial-challenge analysis is impactful: it warns challengers that attacking a multi-object, multi-configuration criminal statute facially requires grappling with all regulated objects within the challenged operative provisions. This pushes future challengers toward as-applied litigation or carefully tailored claims against severable subsections.

3. Universal injunctions after Trump v. CASA, Inc.

Although the court declared the issue moot, its footnote signals that district courts in this circuit must reassess universal statewide injunctions against statutory enforcement in light of Trump v. CASA, Inc.. Even in Second Amendment cases, remedies may become more plaintiff-specific absent class certification or other proper vehicles for broader relief.

4. Near-term doctrinal uncertainty and Supreme Court attention

The opinion notes the Supreme Court’s recent grant of certiorari in similar cases (Viramontes v. Cook County; Grant v. Higgins). That acknowledgment underscores that the Supreme Court may soon clarify whether “dangerous and unusual,” “common use,” and “particularly dangerous” are distinct tests or different descriptions of the same inquiry, and how much weight courts should give to weapon popularity versus historical analogues.

IV. Complex Concepts Simplified

  • Facial vs. as-applied challenges: A facial challenge argues a law is invalid in all its applications; an as-applied challenge argues it is invalid in the plaintiff’s specific circumstances. Facial challenges are hard because the challenger must show the law cannot constitutionally operate in any scenario.
  • Bruen step one and step two: Step one asks whether the Second Amendment’s text covers the conduct (e.g., possessing a weapon). If yes, step two asks whether history and tradition justify the restriction.
  • Historical “analogues”: Courts do not require identical historical laws; they look for older regulations that are “relevantly similar” in how they burden the right and why they do so.
  • “Dangerous and unusual” vs. “common use”: In Second Amendment doctrine, a weapon’s widespread civilian ownership (“common use”) is often treated as evidence it cannot be categorically banned, while “dangerous and unusual” weapons may be regulated more heavily. This case deemphasizes raw popularity as dispositive and emphasizes historical principles permitting special restrictions on weapons posing special dangers.
  • Grandfather clause and registration (endorsement affidavit): A grandfather clause lets existing lawful owners keep restricted items. The endorsement affidavit is a registration mechanism to document that existing lawful ownership.
  • Universal injunction: An order preventing enforcement against anyone, not just the plaintiffs. The opinion notes such relief has become doctrinally suspect after Trump v. CASA, Inc..

V. Conclusion

The Seventh Circuit reversed the district court’s permanent injunction and upheld Illinois’s Act as applied to AR-15s and thirty-round rifle magazines, concluding the restrictions are consistent with the “principles that underpin” the Nation’s tradition of firearm regulation. The court also upheld the Act’s endorsement affidavit requirement as a nondiscretionary, “shall-issue”-like condition attached to grandfathered possession.

Two features give the decision particular significance: (1) its insistence that facial challenges to multi-item weapons statutes fail unless challengers confront every application covered by the operative prohibitions; and (2) its post-Rahimi embrace of principle-based historical analogy, using Bowie-knife-era restrictions as a leading exemplar to justify modern targeted bans on weapons the legislature deems especially dangerous—while leaving the “common use” debate alive, as the dissent sharply illustrates and as pending Supreme Court review suggests will soon be clarified.