In Young Buck's latest track 'The Get Back'  he reserves his right to shoot bad cops.

The 35-year old had to deal with police yesterday when he was arrested for threatening to burn his ex-girlfriend's house down.

According to the unnamed women, Buck texted her his threat of arson on Wednesday. Then he kicked down the door of her apartment -- although he didn't cause any damage once inside.

Buck was in custody for a few hours and was then released on a $5,000 bond.

Since he is still on federal probation for gun charges, this arrest could mean big trouble for the G-Unit soldier.