Nine-year-old boy 1, armed robbers 0

A 9-year-old boy fought back against two robbers who broke into his family’s home in Brooklyn Monday, slamming a bedroom door against one suspect’s arm so hard that the loaded gun he was holding fell to the floor, police said.

The boy then picked up the weapon and fired shots, scaring off the would-be robbers.

The robbers entered the house on 80th Street in Canarsie at about 6 p.m. and ordered two teenagers inside to get on the floor, according to police.