( CNN ) -- A New Jersey man is under arrest after a routine traffic stop led to a search of his apartment and the discovery of bomb-making materials and weapons , Roselle Park police said . Travis Dulk , 27 , was arrested early Wednesday morning and charged with unlawful possession of a weapon , unlawful possession of hollow-point ammunition and possession of cocaine and narcotics , according to police Chief Paul Morrison . Authorities seized weapons -- including an M4 assault rifle -- as well as hundreds of rounds of ammunition and canisters of black powder in a search of his apartment . `` There was no bomb that would be readily available . There were materials that could be consistent of making a device , '' Morrison said of the items discovered . `` There were at least 10-12 fully loaded magazines on a table , in plain view , '' the chief added . Dulk was stopped on a traffic violation around 4 p.m. Tuesday near the New Jersey Garden State Parkway , a statement from the police department said . Police became suspicious after noticing 9 mm bullets on the floor of the driver 's side of the vehicle , the chief said . When he was searched , Dulk was found to being carrying a handgun loaded with hollow-point bullets , as well as several bags of cocaine and prescription drugs , the police statement said . Dulk initially consented to having his apartment searched but later changed his mind , Morrison said . Police got a search warrant and , with a bomb squad , conducted a midnight raid of the apartment . The apartment complex was also evacuated . Police are investigating whether the weapons recovered were legally purchased . Dulk is being held at the county jail on $ 115,000 bail as the investigation continues . It was not immediately clear whether he had legal representation .
He was stopped for a traffic violation , police say . Police got a warrant to search his apartment . Weapons , including an assault rifle , and canisters of black powder are found .