The agents, all of whom arrived in four armored vehicles, descended on the property about five miles north of Covington in Newton County on August 10, the girl's father Donnie Hyatt told The Atlanta Journal-Constitution.
Hyatt and his wife are said to have links to a far-right militia leader called Chris Hill, and attended the January 6 'Stop the Steal' rally in Washington DC. They insist they did not join in the subsequent storming of the Capitol building.
Hyatt recalled sitting in his car, parked in the driveway ,when the agents came to raid the property around 7am, and said electronics and communications devices including phones as well as computers were seized.
'They had my 11-year-old daughter at gunpoint,' he expressed to the outlet.
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The agents' laser sights were aimed at her, he said, and revealed she is 'pretty shaken' by the experience: 'She still shakes when she talks about it.'
While the agents had a warrant to converge upon the property, Hyatt pointed out that it was for a sealed investigation, and that they did not divulge many details to the frightened residents.
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Members of the FBI refused to comment when contacted by The Atlanta Journal-Constitution.
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Hyatt said that although he and his wife attended Donald Trump's January 6 'Stop the Steal' rally outside the White House, he contends that they did not join the subsequent siege on Congress.
Agents confiscated cell phones, computers and even his daughter's tablet: 'they took basically every electronic device in my house,' Hyatt said.
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He stated that he believes the election was 'stolen' from Trump and that the rioters were 'acting out of frustration,' but said that he thought it was a 'really dumb decision' for thousands of protesters to storm the Capitol.
'I understand why they did it,' he noted. 'I'm still angry about (the election). I'm angry about how I'm being treated.'
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Although he and his wife kept updated on what was taking place during the siege, they were not in touch with anyone inside the building, and that they 'don't even know anybody that knows anybody that went in.'
The Hyatt family is associated with 111% Security Force and its leader, Stockbridge resident Chris Hill, according to the Journal-Constitution.
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Hill announced the raid on Wednesday using a social media site called Clapper (he has been banned from Facebook, Youtube and other mainstream outlets).
'The roundup has begun. The police state has begun,' he wrote.
'All you have to do is simply stand on American soil and your constitutional rights are trampled, your life is ruined and you get raider, Weaver style, in front of the family.'