He blasts: 'I'm going to see those assholes who called me a f****** terrorist' and

Jon Ritzheimer, (pictured) a Phoenix based anti-Islam activist posted the expletive-ridden video on his Facebook page slamming President Obama, refugees and Muslims.

A high-profile anti-Islam activist has posted a threatening video online in which he vowed to go to New York to confront Muslims - sparking the FBI to send a warning to the NYPD.

Jon Ritzheimer, a Phoenix based anti-Islam activist posted the expletive-ridden video on Facebook on November 18, slamming President Obama, refugees and Muslims.

In the video, Ritzheimer held a gun and also laid into The Islamic Post, a publication of the Hancock, New York-based organization the Muslims of America. In June, it published an article that labeled Ritzheimer an 'American Taliban.'

In response, Ritzheimer fires back: 'What's up America? Jon Ritz here with my brother Tyler, one of my old high school brother's here, and we're driving all the way across America all the way to New York to go see those ar******* at The Islamic Post who decided to publish a paper calling me a f****** terrorist in this country.'

He continued: 'F**k you Muslims. F*** all of you. We're gonna stop at virtually every mosque on the way, flip them off and tell them to get f******.'

Ritzheimer also insults President Obama saying: 'And Obama, you stupid sorry sack of sh*t, you wanna come out and say we're all afraid of these poor little widows and orphans? F**k you. That's not what's coming over here.

'And you know what I'm not afraid. I fear for my family's safety, but I'm not afraid because these guys are f****** cowards and they show time and time again they do not come and attack our targets.

'Well guess what?' He shouts brandishing and cocking a gun, 'We're f*****g ready for them.'

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In the video, Ritzheimer, left, holds a gun and blasts The Islamic Post newspaper. In June, it published an article branding Ritzheimer an 'American Taliban.'

In response, Ritzheimer, left, fires back: 'I'm going to see those assholes who called me a f****** terrorist,' he then brandished and cocked a gun and said that he planned to visit New York to confront the newspaper

He continued in the video rant: 'F**k you Muslims. We're gonna stop at virtually every mosque along the way, flip them off and tell them to get f******.' (Ritzheimer is pictured here with a gun on his back)

He blasts: 'Bring it on you Muslim f****. You want to come f*** around in our country? We're ready for you. So I'm not afraid.'

While he deleted the video on the same day that he posted it, the FBI took the unusual step of alerting New York law enforcement to the possible threat of Ritzheimer as they are taking him seriously.

Agents were able to talk with him, but two days later, when he was in Scranton, Pennsylvania he got angry and stopped communicating with them The New York Daily News reports.

At that point, the agency issued an alert, citing a 'potential threat to law enforcement.'

An FBI spokesperson told The Arizona Republic: 'The FBI vigorously investigates threats and allegations of hate crimes.

'After recently becoming aware of a video which could have been perceived as threatening against the Muslim community in Hancock, New York, the FBI immediately took steps to notify our federal, state and local partners.'

Agents were able to talk with Ritzheimer but two days later, when he was in Scranton, Pennsylvania he got angry and stopped communicating (he is pictured here in front of an American flag and with a gun on the wall)

Ritzheimer (pictured here with a gun) deleted the video rant on the same day that he posted it

The FBI took the unusual step to alert New York law enforcement to the possible threat of Ritzheimer - seen here holding an American flag and wearing a f*** Islam T-shirt - as they are taking him seriously

Ritzheimer, a former Marine gained attention in Phoenix following a string of anti-Muslim protests in May and October. The May event focused on a Mohammed cartoon contest.

In October, Ritzheimer told The Arizona Republic: 'I believe there's good Muslims in this country. But I do not condone Islam and what it teaches.'

On his Facebook page, Ritzheimer calls himself a 'three-percenter,' a reference to the three percent of the population of the American colonies that fought the British during the Revolutionary War.

In a chilling message to his fellow Americans included in his video he pleads: 'I'm urging all Americans across the US to start carrying a rifle with you everywhere.

'Don't be a victim in your own country.' Adding: 'F*** you Obama.'

In the video, Ritzheimer, pictured left and far right, said he and a friend were heading to New York and would 'stop at every mosque on the way and take a picture, flipping them off

Ritzheimer, right, a former Marine gained attention in Phoenix following a string of anti-Muslim protests in May and October. He is pictured here as he shakes hands with Men who appear to be in Islamic dress

A spokesperson for the Muslims of America said that they are working with local law enforcement to keep their community safe.

The FBI and New York State Police are also watching closely for any violence and keeping in contact with the Muslim group and residents of Hancock.