NJ AR-15 and Magazine Ban Stay: Ruling on Hold Pending SCOTUS

The Third Circuit granted New Jersey's motion to stay its own ruling on the morning of August 4, 2026. The order pauses the July 17 en banc decision in Association of New Jersey Rifle and Pistol Clubs v. Platkin, which had held the state's assault-firearm definition (N.J.S.A. 2C:39-1w) and 10-round magazine cap (N.J.S.A. 2C:39-1y) unconstitutional, pending the Supreme Court's disposition of the state's anticipated petition for certiorari or the expiration of the time to file it. In plain terms: the 1990 assault-firearms law and the 2018 magazine limit stay on the books and stay enforced until the Supreme Court declines the case, and if the Court takes it, the stay runs all the way through the final merits decision.

Attorney General Jennifer Davenport, who took over the office from Matt Platkin in January 2026 under Governor Sherrill, called the outcome a win for stability. “We are thrilled that the Third Circuit this morning stayed its ruling,” her office said in a statement, adding that the state “will continue to stand up for common-sense gun-safety laws in court.” The plaintiffs, the Association of New Jersey Rifle and Pistol Clubs and individual challengers including Mark Cheeseman, keep their en banc victory as precedent; they just cannot use it yet.

There was no window when AR-15s or standard-capacity magazines were legal to buy in New Jersey. That is the single most important fact in this order, because the original compliance guidance pointed the other way. After the July 17 ruling, New Jersey State Police told federally licensed dealers the decision would take effect July 31, 2026, and dealers spent two weeks preparing to process the first duty-configured AR-15 transfers since 1990. Our coverage of the July ruling walked through that NJSP notice and the two-week ramp it created.

The ramp never reached the counter. On Friday, July 31, the day the ruling was set to take effect, the Attorney General's office filed its motion to stay with the Third Circuit. NJSP immediately sent dealers a follow-up notice: because the stay motion was pending, nothing would change until the court ruled, with August 7 as the date the decision would become effective if the motion were denied. The court granted the stay on Tuesday, August 4, three days before that fallback date. Every day from July 17 through today, the 10-round cap and the assault-firearm list have been enforced exactly as they were in June.

The practical consequence cuts one way: a PMAG 30 shipped to a New Jersey address in early August is contraband, full stop. Residents who ordered rifles or magazines in anticipation of the effective date never received a lawful possession window, and none is currently scheduled. Where each state actually stands on magazine limits and assault-weapon feature rules is tracked in our state legality matrix; New Jersey's columns remain restricted.

Nothing about lawful purchasing changed relative to June 2026. New Jersey residents with a valid Firearms Purchaser Identification Card can buy featureless and fixed-magazine semi-automatic rifles that clear the assault-firearm definition, magazines of 10 rounds or fewer, and any unregulated component: optics, triggers, slings, lights, bipods. The New Jersey compliance guide covers the compliant rifle configurations that remain lawful regardless of how the appeal ends.

Keeping the FPIC current is still the right move. If the Supreme Court denies cert, the stay dissolves and the Third Circuit ruling takes effect; if the Court affirms the Third Circuit after argument, the result is the same on a longer timeline. In either branch, buyers with paperwork in hand move first, and New Jersey FPIC processing runs weeks to months depending on municipality. For platform research in the meantime, the best AR-15 rifles guide ranks the duty-configuration rifles that led the inventory plans distributors drew up for July 31, and the rifle builder handles compliant and standard configurations alike.

New Jersey's petition for certiorari is due October 15, 2026, and the state can request up to a 60-day extension from Justice Samuel Alito, the circuit justice for the Third Circuit, which would push filing into mid-December. The stay holds through that whole window, and if the Court grants review, through its final decision on the merits.

The disposition question is where the calendar gets long. The Supreme Court granted cert on June 30, 2026 in Viramontes v. Cook County and Grant v. Higgins, the Illinois and Connecticut assault-weapons cases set for argument this fall. Those cases present the same constitutional question the Third Circuit answered in July, on records where the circuit courts upheld the bans. The standard move is for the Court to hold New Jersey's petition until it decides Viramontes and Grant, then dispose of it in light of that ruling. Decisions in argued cases land by the end of the term, so if the Court holds New Jersey's petition for those cases, the ban stays enforced into 2027 regardless of how quickly Davenport files.

The stakes structure is unchanged from July: Judge Arianna Freeman's majority opinion for the en banc Third Circuit is the only federal appeals court decision striking a state assault-weapons ban, against the Fourth, Second, Seventh, and First Circuits upholding theirs. The stay does not weaken that split; it just keeps New Jersey's statute operative while the Supreme Court resolves it on the Illinois and Connecticut records.

New Jersey's assault-firearms law and 10-round magazine cap are enforced today, were enforced every day since the July 17 ruling, and will stay enforced at least until the Supreme Court acts on the state's petition. The July 31 effective date that dealers prepared for died in a three-filing sequence: stay motion on July 31, NJSP hold notice the same week, stay granted August 4. For gun owners the actionable list is short and unchanged: keep the FPIC current, buy compliant configurations if buying now, and do not bring standard-capacity magazines into the state. The constitutional question is now consolidated into the Supreme Court's fall term, where the Illinois and Connecticut arguments will decide whether the Third Circuit's ruling becomes the law of the land or a vacated outlier.