Brandon Diaz, 21, was driving a 2005 Honda Accord with an expired registration when he was stopped over the weekend, Police Chief Michael Foligno said.
They quickly learned that Diaz was wanted out of Paterson for aggravated assault with a firearm, Foligno said.
The officers arrested Diaz on the outstanding warrant, then searched the car and found the 9mm Taurus pistol, reported stolen out of Georgia, the chief said.
Diaz remained held Monday in the Bergen County Jail pending a first appearance in Central Judicial Processing Court on gun and ammo charges, as well as a drug count for having Oxycodone without a prescription, he said.
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