Jay Rock has been arrested for felony gun possession ... and, the whole interaction with cops was apparently caught on video.

Rapper Jay Rock was arrested Thursday evening near the Watts public housing complex where he grew up and booked on suspicion of illegal firearm possession, authorities said.

Jay Rock, the Grammy-winning rapper and one of the founding members of Top Dawg Entertainment (TDE), was arrested in Los ... resulting in his arrest for felony gun possession.