The city’s Narcotics Unit raided a home on North 2nd Street on Friday afternoon – just minutes after busting a heroin processing mill — making an arrest, recovering 422 grams of marijuana, an assault rifle, and a handgun, said police director Jerry Speziale.

Derrick Powell, 41, was arrested at 130 North 2nd Street at about 4:40 p.m., according to police.

Police said Powell had a loaded .22 caliber H&R handgun and a loaded .223 Panther Arms assault rifle.

The assault rifle was loaded with 14 .223 rounds; the handgun was loaded with 9 .22 caliber rounds, said the director.

Powell has been charged on various drug offenses. He was also charged with having a large capacity magazine, an assault rifle while dealing drugs, and for having a defaced handgun.

Police said the alleged drug dealer also had a previous felony which barred him from having firearms.

Less than an hour earlier police at 4 p.m. raided 3 North 4th Street. 35 grams of pure heroin, 37 grams of cocaine, and 110 Oxycodone pills were recovered during the raid at the heroin mill. 26-year-old Londy Molina was arrested and charged with various offenses including running a drug processing mill.

“I applaud the men and women responsible for these arrests, as we will take one bag of heroin and one gun at a time until we have a drug-free city,” said Speziale.