TMZ Sports has obtained video from the moments after Raja Jackson was arrested on a felony charge of battery with serious bodily injury ... and in the footage, you can see Quinton "Rampage" Jackson's son was not pleased to be in 'cuffs.
We're told the arrest took place at around 9 AM on Thursday at an apartment complex in Huntington Beach, CA ... after officers executed an arrest warrant.
Raja can be seen in the clip being escorted away from a residence by two police officers.