Last updated July 2026 · By Nick Hall, covers Second Amendment litigation and state gun law for USA Gun Shop
Quick take: The Third Circuit struck down the New Jersey assault weapons ban and the state’s 10-round magazine limit, sitting en banc and splitting 10-5. State Police have told dealers the decision takes effect on July 31, 2026. It is the first time a federal appeals court has knocked out a state assault weapons ban.
- Ruling: New Jersey’s assault firearm ban and its ban on magazines over 10 rounds both violate the Second Amendment.
- Court: The Third Circuit sitting en banc, 10-5, in Association of New Jersey Rifle & Pistol Clubs v. Platkin, No. 24-2415, decided July 17, 2026.
- Why it matters: Every other federal circuit to reach the question went the other way, which hands the Supreme Court a clean split.
- What’s next: The ruling is effective July 31, 2026, and Attorney General Jennifer Davenport says the state is considering its options.
Most Second Amendment appeals end one of two ways. Either the panel upholds the law in a paragraph of deference, or it strikes something so narrow that nothing on a shelf actually changes. This one is different, and the difference is a date.
What the New Jersey Assault Weapons Ban Ruling Actually Held
On July 17, 2026, the full Third Circuit ruled that New Jersey’s assault firearm statute is unconstitutional as applied to the whole class of semi-automatic rifles it covers, not just one make. Judge Arianna Freeman wrote for the majority. Judge Patty Shwartz wrote the principal dissent.
The court went further than the district court had. A 2024 ruling below had protected only Colt-manufactured AR-15s, a carve-out that satisfied nobody, and the en banc majority expanded that order to reach the full covered class.
It also reversed the part of the lower court’s decision that had upheld the magazine limit. New Jersey capped magazines at 10 rounds in 2018, down from 15, and that cap is now unconstitutional too.
The fight underneath all of it is the Bruen framework, which asks whether a modern gun law fits the nation’s historical tradition of firearms regulation. Applying that test to a rifle designed in the 1950s and sold by the million has produced wildly different answers depending on which historical analogies a court finds persuasive.
The dissent’s objection cuts at exactly that. Judge Shwartz argued the majority had converted the test into a popularity contest, holding in her framing that states cannot regulate weapons that happen to be commonly owned. That is the “common use” problem, and it is the same fault line the Supreme Court is about to stand on.
July 31 Is the Date That Matters
A court opinion and a legal shelf are different things, and the gap between them is where most coverage goes wrong. The operative detail came from the New Jersey State Police Firearms Dealer Investigation Unit, which notified licensed dealers that the decision is effective July 31, 2026.
The Office of the Attorney General has said it is developing practical guidance for residents and businesses. That guidance had not landed as of this writing, which leaves dealers holding the operational questions about how transfers get processed once the date passes.
Not everything in the case is resolved. Challenges touching certain semi-automatic pistols and shotguns went back to the district court for further proceedings, so the ruling is broad on rifles and magazines and unfinished elsewhere.
The State Is Not Conceding
Attorney General Jennifer Davenport called the decision “as unfortunate as it is legally incorrect,” and pointed at the rest of the country to make the argument. “Every other federal circuit court to consider the issue has come out the other way,” she said.
She is right about that, and it is exactly why the ruling carries weight. New Jersey has said it is considering its options, which in practice means a stay application, a cert petition, or both.
But a stay is a harder ask after an en banc court has already spoken. A three-judge panel getting reversed by the full circuit is routine. The full circuit getting paused by the Supreme Court on an emergency application, in a case the Court has effectively already agreed to decide on the merits elsewhere, is a different proposition.
Eight Days Earlier, the Seventh Circuit Went the Other Way
The timing here is almost comic. On July 9, 2026, the Seventh Circuit upheld Illinois’ ban on the same class of rifles and magazines in Barnett v. Raoul, which we covered when the Seventh Circuit reversed the district court. Eight days later the Third Circuit reached the opposite conclusion on materially the same question.
That is what a circuit split looks like, and the Supreme Court is already holding the tools to fix it. The justices granted review in Viramontes v. Cook County and Grant v. Higgins and consolidated them, teeing up whether the Second Amendment protects AR-platform rifles and similar semi-automatic firearms.
Whatever the Court says will override both rulings. Until it speaks, the law depends on which side of the Delaware River you are standing on.
What a New Jersey Buyer Should Actually Expect
Read the ruling as a change to what the state may prohibit, not as a change to everything else that governs a purchase. New Jersey’s permitting structure, its Firearms Purchaser Identification Card, background checks, and one-gun-a-month provisions are separate machinery and were not at issue here, which is the detail most likely to trip up somebody walking into a shop on August 1 expecting a different experience.
Expect inventory to lag the calendar too. Dealers who have not stocked a banned-class rifle since the statute passed do not refill a shelf overnight, and the compliance guidance is still pending. Our New Jersey gun laws guide tracks the rest of the framework, and the shops we rate in the state are where the guidance will show up first.
One appeals court has now said out loud that a state cannot ban the most popular rifle in America. Four days from now, New Jersey has to act like it.
Frequently Asked Questions
Is the AR-15 legal in New Jersey now?
Under the Third Circuit's ruling the state's assault firearm ban is unconstitutional as applied to the covered class of semi-automatic rifles. New Jersey State Police told dealers the decision is effective July 31, 2026. The state has said it is considering its options, which could include seeking a stay.
What case struck down New Jersey's assault weapons ban?
Association of New Jersey Rifle & Pistol Clubs v. Platkin, No. 24-2415, decided by the Third Circuit sitting en banc on July 17, 2026. The vote was 10-5, with Judge Arianna Freeman writing for the majority.
Are magazines over 10 rounds legal in New Jersey?
The same ruling held the state's 10-round magazine limit unconstitutional. New Jersey set that cap in 2018, reducing it from 15 rounds. The effective date is the same July 31, 2026.
Do I still need a Firearms Purchaser Identification Card?
Yes. The ruling addressed which firearms the state may prohibit. New Jersey's permitting structure, the Firearms Purchaser Identification Card, background checks and other purchase requirements were not struck down and still apply.
Does this ruling apply outside New Jersey?
The Third Circuit covers New Jersey, Pennsylvania, Delaware and the Virgin Islands. It does not change law in other circuits, and every other federal appeals court to reach the question has ruled the other way.
Will the Supreme Court settle this?
The justices have granted review in Viramontes v. Cook County and Grant v. Higgins and consolidated them. Those cases ask whether the Second Amendment protects AR-platform rifles and similar semi-automatic firearms, and the answer will override both the Third and Seventh Circuit rulings.
What did the Seventh Circuit decide?
On July 9, 2026, eight days before the New Jersey ruling, the Seventh Circuit upheld Illinois' ban on comparable rifles and magazines in Barnett v. Raoul. The two decisions conflict, which is what created the circuit split.
What is still unresolved in the case?
Claims involving certain semi-automatic pistols and shotguns were sent back to the district court for further proceedings. The ruling is broad on rifles and magazines and unfinished on other categories.
Related Reading
- New Jersey gun laws explained
- The Seventh Circuit ruling that went the other way
- Best gun stores in New Jersey
- Best AR-15 rifles under $1,000
- Cheapest AR-15 rifles worth buying
- The Denver magazine lawsuit running on a parallel track
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