When they raided a 9th Street apartment in Troy late last night, cops made four arrests, found a loaded .357 magnum handgun plus 30 packets of heroin, according to Troy Police.

Monday night, Troy’s Firearms Interdiction and Narcotics Suppression Unit (FINS) served a search warrant at 313 9th street 1st Floor in Troy at 9:30 a.m. It began with Intelligence that was gathered and quickly analyzed along with calls from the public. Due to the thought that guns were in the apartment, the search warrant was executed by the Troy P.D. Emergency Response Team (ERT). The Troy Police Department K-9 units assisted in the search warrant, police said.

“The search warrant was the result of a short, but intense investigation by FINS and the NYS Police CNET (Capital Division),” police said in a statement.

Four people inside the apartment were arrested and arraigned in Troy City Court Tuesday morning:

Jacob A. Cargill, 22, of the Bronx (top left), Larenzo Lamont Escobales, 19, of Corliss Park Apts., Troy (top right), Zaequan Morrison, 16, of Old 6th Ave., Troy (second row, left) and Joshua Vega, 22, of River Street, Troy (second row, right). Each are charged with Criminal Possession of a Weapon (2nd Degree) and Criminal Possession of a Controlled Substance (3rd Degree).