Is New Jersey’s Assault Weapons Ban Still in Effect? Yes.

On July 17, 2026, a federal appeals court held that New Jersey’s ban on semi-automatic rifles and its ban on magazines holding more than ten rounds both violate the Second Amendment of the U.S. Constitution. The en banc Third Circuit decision came down 10 to 5, and the opinions run to roughly 192 pages.

Both laws are still in force today. Possessing an assault firearm in New Jersey remains a crime, and so does possessing a magazine over ten rounds. Nothing about your legal obligations changed on July 17, and nothing has changed since.

If that sounds contradictory, it is because the relationship between a court ruling and the law on the ground is less direct than most people assume. Here is how it actually works, and why the last five weeks have been genuinely dangerous for New Jersey gun owners who assumed otherwise.

A Decision Is Not Self-Executing

When a federal appeals court decides a case, the decision does not take effect the moment the opinion is posted. The court has to issue what is called a mandate, which is the formal order transferring the ruling back to the lower court and putting it into operation. Until the mandate issues, the judgment is announced but inert.

The court can also stay its own mandate, holding the ruling in suspension while the losing side asks the Supreme Court to review it. That is exactly what happened here. On August 4 the Third Circuit granted the Attorney General’s motion and stayed its mandate pending the Supreme Court’s disposition of the state’s anticipated certiorari petition. If the Supreme Court takes the case, the stay continues through a final decision on the merits. Attorney General Jennifer Davenport welcomed the order, describing it as preserving a 36-year-old law and providing stability while the litigation runs its course. She had earlier called the underlying ruling legally incorrect, noting that every other federal circuit to consider these restrictions had upheld them.

The practical translation is short. A court has told New Jersey its laws are unconstitutional, and New Jersey may continue enforcing them anyway, lawfully, for as long as the appeal runs.

The Timeline Runs Well Into Next Year

Under Supreme Court Rule 13, the state has ninety days from the judgment to file its certiorari petition, which puts the deadline in mid-October. The rule also permits a justice to grant an extension of up to sixty days for good cause, and a request of that kind would push the filing toward mid-December.

Independently, the Supreme Court granted review on June 30 in two other cases raising the assault weapons question, arising out of Illinois and Connecticut. Merits briefing in those cases is underway and argument is expected this coming term. The most likely path is that the Court holds New Jersey’s petition until it decides those cases, which points toward a resolution sometime in 2027.

Anyone doing arithmetic on when New Jersey’s bans might actually lapse should be thinking in terms of next year at the earliest, and should understand that the Supreme Court could also rule the other way and end the question permanently.

The Two Weeks in Late July Were a Mess

The confusion was not the public’s fault.

After the July 17 decision, communications to firearms retailers indicated the ruling would take effect July 31. The Attorney General’s office then said the mandate would not issue until August 7. Licensed dealers were promised further guidance by the end of July and instead got a motion asking the Third Circuit to freeze its own ruling. For roughly two weeks, the people with the most direct exposure to these statutes were receiving inconsistent signals about when, or whether, anything was changing.

If you bought, ordered, imported, assembled or modified anything during that window on the understanding that the ban had fallen, you should talk to a lawyer rather than reason it out yourself. Reliance on informal or erroneous agency guidance is not a general defense to a criminal statute, and the analysis is fact-specific enough that it is worth an actual conversation.

What This Means Right Now

The assault firearm provisions and the magazine provisions remain enforceable New Jersey law. Conduct that was criminal on July 16 is still criminal today. Out-of-state purchases are still subject to New Jersey law when the item comes into the state. A pending Supreme Court appeal is not a grace period.

The one thing that has genuinely changed is the direction of the law, and that matters for planning rather than for conduct. New Jersey is now the first state in the country whose assault weapons and magazine bans have been struck down by a federal court of appeals, which puts the state at the center of a national question the Supreme Court has already agreed to answer. That is worth watching closely. It is not worth acting on.

Why This Pattern Will Keep Repeating

There is a broader point here that outlasts this particular case.

Constitutional litigation moves in public and in fragments. A ruling is announced, coverage follows within hours, and the procedural machinery that determines whether the ruling actually operates gets almost no attention because it is technical and boring. The gap between what people believe the law is and what the law actually requires opens fastest in exactly the moments when the stakes are highest.

New Jersey gun owners are living inside that gap right now. They will not be the last. The safe practice, in this area and in others, is to treat a headline about a court decision as notice that something may eventually change rather than as notice that something already has.

This post describes the general state of New Jersey law as of August 2026 and is not legal advice. If your own situation turns on any of this, consult an attorney.