WOODBURY — After Hearing Sean P. Allen, 41, of Woodbury, had made a full confession,  a judge Friday  denied him any reduction on three separate bails of $100,000 each on charges he used a sawed-off shotgun to rob three Heritage’s stores in the Woodbury area in February 2015.

“Apparently, the state’s proofs are quite substantial,”  said Superior Court Judge Kevin P. Smith, noting that Assistant Gloucester County Prosecutor Alec Gutierrez had also pointed out that Woodbury police recovered the shotgun and “a significant” amount of ammunition when arresting Allen at his residence on March 4.

Gutierrez opposed any bail reduction, saying Allen faced up to 30 years in prison on the Woodbury, Woodbury Heights and West Deptford robbery charges alone, making him a “significant flight risk.” Allen is also charged with weapons offenses and conspiracy to commit robbery with a  codefendant.

“In many respects, the defendant is lucky he’s not here on homicide charges,” said Smith. Using a firearm during a robbery “presents an incredible danger to the victim and bystanders,”  the judge said. “Any false step or misstep could have caused the gun to discharge.”

Even though Allen has a “minimal” criminal history, the total of $300,000 bail “is appropriate in my mind,” Smith said.