PITTSFIELD -- A city man accused of illegally keeping four firearms and more than 400 rounds of ammunition in his apartment has been found guilty on 22 charges.

Gerald V. Gaetani, 64, of Bradford Street, was convicted on Thursday by a Berkshire Superior Court jury, which deliberated for a total of six hours before reaching its verdict, according to the Berkshire district attorney's office.

Gaetani was found guilty of three counts of illegal possession of a large capacity weapon, 12 counts of illegal possession of a large capacity feeding device, one count of illegal ownership of a firearm, one count of possession of ammunition without a firearm identification card, one count of possession of a firearm with a defaced serial number, three counts of improper storage of a large capacity firearm with a defaced serial number, three counts of improper storage of a large capacity firearm and one count of improper storage of a firearm.

Judge Mary Lou Rep released Gaetani on $10,000 cash bail or $100,000 surety bail pending sentencing, which is scheduled for 9 a.m. Monday.

The prosecution contended that Gaetani illegally possessed two large capacity weapons and 12 large capacity magazines that house between 15 and 30 rounds each.

Gaetani also reportedly was in illegal possession of two handguns. One of the firearms also had a defaced serial number.

Justin Gaetani, Gerald Gaetani's son, testified during the trial that he had moved the guns and ammunition to his father's apartment from a self-storage facility without his father's knowledge.

Pittsfield police discovered some of the weapons and ammunition in Gaetani's apartment on March 3 while looking for his son Justin in connection with a vandalism incident in Dalton.

Gerald Gaetani allowed police into his apartment. During the course of the search, police found two semiautomatic rifles in a bedroom closet. The elder Gaetani was arrested when it was determined that he did not have a license for the guns.

Police then applied for a search warrant and discovered the other two guns.

Justin Gaetani is currently serving a 5- to 8-year sentence in state prison after being found guilty of firearms-related charges following a Superior Court trial in April.