Rapper Lil Xan is under investigation following a stupid stunt which he is claiming was he pulled a gun on a stranger in self-defense, but right now cops are looking at the incident as a possible case of assault with a deadly weapon.

Over the weekend, Lil Xan whipped out a handgun and pointed it at a man who demanded to know why the rapper once called Tupac “boring.” Read on to get the latest details on rapper Lil Xan…

CelebNMusic247.com reports that law enforcement sources say that LAPD’s elite Robbery-Homicide Division has taken over the investigation which could lead to a very serious felony.

If you recall, Lil Xan started flashing what looks like a semi-automatic handgun … as he walked to his Mercedes-Benz SUV with his GF, Annie Smith. Annie yelled back at the man, “You started it, you dumb f**k.”

Then Lil Xan posted the meme saying that he only pulled out the gun to protect himself from an attack:

The problem is that police are NOT buying his story and the alleged victim first went to police over his Friday night run-in with the rapper.

Then the officer filed a report for assault with a deadly weapon.

Although, Xan never fired it rises to assault with a deadly weapon if the alleged victim feared he might be shot.

TMZ posted the video above of Xan and now TMZ sources say detectives are also looking to pull video from nearby businesses and high-rise residential buildings. There’s also a restaurant across the street that may have surveillance vid of the full encounter. That could provide more context beyond our video, which starts when the argument is already in full swing.

At this time detectives want to speak with Lil Xan to get his side of the story. Once they speak to him, cops could present their case to the D.A.’s Office and/or get a warrant to arrest him.

The 22-year-old rapper continues to maintain that he only pulled the gun because he thought he was about to be attacked.

Xan could be charged with a felony that carries a max sentence of 4 years.