Warning: Video contains graphic language

Video posted online Monday night shows a white man in South Florida pulling a pistol on a group of black kids and repeatedly calling them the N-word during a Martin Luther King Jr. Day protest against gun violence.

“Get the f–k out of here … f–king stupid n—ers!” the man shouts. “F–king dumb-ass f–king n—ers!”

The incident happened Monday afternoon in Miami’s Brickell district, according to the Florida civil rights group Dream Defenders, which posted the footage on its Twitter page.

Police told the Miami New Times that the man seen in the video — identified as 51-year-old Mark Allen Bartlett — was arrested and charged with carrying a concealed firearm.

His outburst appeared to stem from a dispute that another resident was having with the aforementioned kids, who reportedly were taking part in the area’s annual “Wheels Up, Guns Down” protest, which involves bikers and bicyclists protesting against gun violence.

The resident, who is a white female, can be heard accusing the youths of blocking the roadway with their bikes.

“Please move,” the woman says. “I have kids I need to pick up!”

She at one point claims to have gotten run over by them.

“You just ran over my foot with your tire!” the woman yells, prompting Bartlett to step in.

“Who did it?! Who did it?!” he asks before confronting one of the youngsters.

“Get the f–k out of here, you f–king piece of s–t!” Bartlett tells him. “Stupid n—ers.”

According to Dream Defenders, one of the kids involved was 11 years old.

Bartlett, who was being held Monday night on a $5,000 bond, can be seen smiling in his mugshot.

“He looks crazy,” said one Twitter user in response to Bartlett’s mugshot being tweeted out by Dream Defenders.

“Look how happy he is to be a racist,” another said.