Prosecutors in the U.S. District Court for the District of Columbia have sought a 51-month prison sentence for Jacob Chansley, the man known as the "QAnon Shaman," who infamously stormed the Capitol building on Jan. 6 while wearing a Viking hat with fur and horns, according to court documents filed on Tuesday.

“Defendant Chansley’s now-famous criminal acts have made him the public face of the Capitol riot,” prosecutors said in the 28-page sentencing memo.

Chansley's sentencing is scheduled for Nov. 17. Prosecutors are also recommending that he should get three years of supervised release and a $2,000 reinstitution. He pleaded guilty in September to a single federal charge of felony obstruction of an official proceeding.

“The defendant was among the first 30 rioters to penetrate the U.S. Capitol building,” prosecutors wrote. “The defendant then stalked the hallowed halls of the building, riling up other members of the mob with his screaming obscenities about our nation’s lawmakers, and flouting the 'opportunity' to rid our government of those he has long considered to be traitors.”

The prosecutors' sentencing points to his use of social media to spread “false information and hateful rhetoric” to motivate other rioters and that “he proceeded to take pictures of himself on the dais and refused to vacate the seat when asked to do so by law enforcement.”

It also noted that Chansley was “armed with a six-foot-long spear," and that he "brazenly marched past dozens of law enforcement officers, with rioters throwing debris of all kind at those who opposed them, past broken windows and through doors ringing with alarm bells."

The prosecutors' proposal is much more severe than the 8-month sentence Paul Hodgkins received, who had also made it into the Senate Chamber the day of the riot. Along with Scott Fairlamb, another rioter who is set for sentencing on Wednesday, with a 44-month prison recommendation.

Chansley's attorney Albert Watkins said the sentence recommendation is unfair. He told NBC News on Wednesday that, “the prosecutor’s recommendation supports the proposition that the Government remains willfully delusional about the role in the events of January 6 of a young, gentle man with zero criminal history and long-standing mental health vulnerabilities. It is shameful.”

Chansley was arrested on Jan. 9 in Phoenix and has spent 10 months in pretrial detention.

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