But 2 Chainz, who was born Tauheed Epps, pleaded guilty only to disorderly conduct at his arraignment later that night, according to a spokesman for Queens District Attorney Richard Brown.
According to the Daily News, Epps was on his way to Raleigh, N.C. for a show when agents found his four-finger ring during the security screening at the Delta terminal.
The emcee was arrested and charged with fourth-degree possession of a weapon, the News said.
Afterward, he hopped on a private jet and headed out to Raleigh for a show, according to the News.
Fellow artist Big Sean took to Twitter to defend Epps, saying the alleged brass knuckles were merely jewelry.
Big Sean tweeted “2 chainz ain't have no brass knuckles, it was a 4 finger ring that spelled hood. We had a shoot yesterday n he was rockin em," the paper reported.