T.I's son King Harris was jailed this week… The 19-year-old was arrested in Georgia in a confrontation with police.

The rapper's teen reportedly came onto a police officer's radar in Dunwoody, Georgia, after he allegedly nearly hit a patrol car while leaving a gas station on Monday.

This prompted the officer to pull King over in the BMW he was driving…and the officer allegedly smelled marijuana coming from the vehicle.

The officer then spotted a gun on King's hip…which led to the officer asking T.I.'s son to put his hands on the steering wheel.

The officer checked King's information and learned that the 19-year-old had a warrant out of Pickens County for his arrest for failure to appear in court.

According to the arresting officer's incident report, King was cooperative when the officer asked him to get out of the vehicle. The officer said he took King's gun with no problem … and handcuffed him.

After escorting King to his patrol car, the officer said he patted him down before putting him in the back seat of the car.

TI's son was arrested… and then taken to the DeKalb County Jail where his mugshot was taken.

King was in the car with two others … and two small bags of marijuana were reportedly found during a search of the vehicle. One of King's companions was reportedly charged with marijuana possession, but they were not arrested.