The man who gunned down Osama bin Laden

A decorated ex-Navy SEAL who grew up in a run-down Montana mining town has been identified as the hero who gunned down Osama bin Laden — and he’s now facing possible legal action for revealing the tightly held secret.

Robert O’Neill, 38, is the SEAL Team Six member who fired three shots into the head of the al Qaeda leader during a top-secret May 2011 raid on his hideout in Abbottabad, Pakistan, according to ­SOFREP, a website dedicated to military news.

He was called “The Shooter” in a March 2014 Esquire article about the daring raid, and is expected to reveal himself during a two-part Fox News TV special next week.

His exploits have already been portrayed on the big screen in the action flicks “Zero Dark Thirty,” “Captain Phillips” and “Lone Survivor.”

And while he’s angered military brass by going public — violating the SEALs’ honored “ethos” that prizes secrecy and disdains self-promotion — his proud dad, Tom O’Neill, says he has nothing to be ashamed of.

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“He is not allowed to talk, yet they are using this big bullhorn to shut him up,” he said, referring to a letter from military commanders chastising the younger O’Neill for going public.

“I support him in everything he is doing,” Tom O’Neill told The Daily Mail.

“What are you supposed to do when you come out of the military after such service — become a greeter at Walmart?” he asked, adding that his son decided to reveal his exploits to help earn a living.

SEAL leaders said revealing classified information is against the law, and that the command will actively seek “judicial consequences.”

The elder O’Neill also said he was not worried about terrorists taking revenge on him or his son.

“I say I’ll paint a big target on my front door and say come and get us,” he said.

Robert O’Neill has two Silver Stars, four Bronze Stars, a Joint Service Commendation Medal, three Presidential Unit citations and two Navy/Marine Corps Commendations.

His exploits include being the first SEAL to jump aboard the Maersk Alabama, the tanker taken over by Somali pirates, as depicted in “Captain Phillips.”

He also helped rescue SEAL Marcus Luttrell, who survived a failed mission to capture a Taliban leader in Afghanistan, as recreated in “Lone Survivor.”