The judge set bail at US$50,000 in a package that allows McGregor to travel without restriction.
The Irishman remained expressionless throughout his short arraignment at the downtown Brooklyn Central Booking facility.More news: Suspect sought in attempted robbery in north Hamilton
On Wednesday, UFC president Dana White announced that McGregor's lightweight title would be vacated and that the victor of Saturday's Max Holloway-Khabib Nurmagomedov would be the new lightweight champion.
Chief of Detectives Robert Boyce said McGregor surrendered to police about 9:30 p.m. Thursday. 'Most of the things I would rather not say, and probably can't say on TV'.
In January, the UFC announced that Khabib Nurmagomedov and Tony Ferguson would fight for the undisputed lightweight title at Saturday's MMA event, known as UFC 223. (9NEWS) Conor McGregor handed himself in on Thursday.
McGregor, 29, and his friend Cian Cowley, 25, turned themselves in to the NYPD's 78th Precinct in Park Slope on Thursday night, the New York Post reported.More news: Trump conjures a new immigrant rape epidemic
On Thursday, White called the incident "the most disgusting thing that has ever happened in the history of this company".
Borg suffered a cornea abrasion to his left eye and bruising to his left cheek, while Chiesa had cuts to his face and hand, which would set up two of the four cancelled fights for UFC 223. According to reports, including TMZ, the fighters and other UFC Fighters were at the center doing pre publicity before UFC 223, when McGregor became angry and threw the dolly.
From there we see the bus attempting to reverse out of the parking garage, as McGregor and his group surround the bus, and following McGregor's screams to 'Break the windows!', begin to pound on every surface of the bus from every direction. He made the biggest payday of his career in a boxing match with Floyd Mayweather in August and has not fought since. McGregor is expected back in court June 14.
White said that he spoke with McGregor and that McGregor apologized for hurting fighters not involved in the feud but was not sorry for his actions, saying he believed they were necessary.More news: Yankees bounce back to ground Orioles
Aside from his athletic success, McGregor is known for his beard and colorful tattoos, taste in expensive and flashy clothes, and aggressive taunting of opponents that stands out even among professional fighters.