An off-duty corrections officer was busted in Brooklyn for firing his gun into the air, according to police.

Cops say Darrell Ramos, 39, was arrested outside the Brevoort Houses in Bed-Stuy at the scene at 11:30 p.m. on Friday night.

It’s not clear why he opened fire.

Ramos, who was also arrested in April for drunk driving, is charged with reckless endangerment and criminal possession of a weapon, police said.