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Department of Justice

U.S. Attorney's Office
Southern District of Florida
For Immediate Release
Juan Antonio Gonzalez, United States Attorney
Contact: Marlene Rodriguez
Wednesday, December 1, 2021

South Florida Felon Sentenced to Federal Prison for Building “Ghost Guns” and Manufacturing Ammunition in Garage

Miami, Florida – This week, Mark Gene George, 58, of Port St. Lucie, Florida, appeared in federal court in Fort Pierce and was sentenced to 27 months in prison after being convicted of possessing a firearm and ammunition while being a convicted felon.

According to court documents, special agents with the Bureau of Alcohol, Tobacco, Firearms and Explosives (“ATF”) executed a federal search warrant at George’s residence in Port St. Lucie in December of 2020.  During the search, agents recovered an AK-style rifle, multiple pistols, and six firearms that had no serial number or manufacturer information.  Agents also found over 5,000 rounds of, and parts of, assorted ammunition, as well as machines and tools to manufacture ammunition.  George later admitted to building unserialized AR-style rifles, as well as ammunition, and to having previously sold firearms online.

Juan Antonio Gonzalez, U.S. Attorney for the Southern District of Florida, and Acting Special Agent in Charge Christopher Robinson of the Bureau of Alcohol, Tobacco, Firearms and Explosives, Miami Field Division, made the announcement.

ATF Miami led the investigation, and Assistant U.S. Attorney Justin Hoover prosecuted the case.

Related court documents and information may be found on the website of the District Court for the Southern District of Florida at or at, under case number 21-cr-14009.


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