A member of the Georgia National Guard assigned to the task force patrolling Washington, DC, is facing assault and gun charges after he was accused of pulling his firearm on a fellow soldier during an argument last month.

Zion Mitchell, 21, faces charges of assault with a dangerous weapon and possession of a firearm during a dangerous crime. He’s being held in the DC Jail.

Mitchell’s attorney, Gregory Copeland, did not immediately respond to an email seeking comment. CNN has also reached out to the task force for comment.

According to court records, Mitchell and other soldiers were sitting in a van outside a Popeye’s on H Street Northeast on August 25 when an argument started about whether the soldiers’ hairstyles followed Army regulations.

One witness told detectives that Mitchell told the soldier he was arguing with that he would “slap the Jackson 5 out of you.” It’s not clear what that comment meant.