Darren Wint allegedly opened fire on Fish Playground Monday about 6:30 p.m., after he getting into a fight with an unidentified teen. He then fled the scene on a bicycle, police said.
Shamar Smith, 16, Rohan Alexander, 18, and a 13-year-old girl sustained graze wounds, police said. The fourth victim, Isaiah Thomas, 16, was shot in the left arm.
All four victims were treated at area hospitals and released.
Wint, who lives around the corner from the scene of the shooting, was arrested Thursday evening. He was being charged as an adult on four counts each of attempted murder, criminal possession of a weapon and assault, according to the Brooklyn District Attorney's office.
He was awaiting arraignment Friday.
The incident marked the fourth playground shooting this summer, and the second time in two weeks that teenagers were shot on a city playground.
In July, Lloyd Morgan, 4, was struck in the head by a stray bullet and killed while playing on a jungle gym in the Morrisania section of The Bronx. Isaiah Rivera, 3, was shot in the legs and injured when a shootout erupted near a playground in Bedford-Stuyvesant in Brooklyn.