Missoula, Montana – A Missoula man who was legally prohibited from possessing firearms has admitted to a federal weapons charge after authorities discovered a loaded handgun and ammunition during a traffic stop in Great Falls.
Jason Duane Spadt, 54, pleaded guilty to one count of prohibited person in possession of a firearm and ammunition, according to Acting U.S. Attorney Mark Steger Smith.
The guilty plea marks the latest development in a case that began after law enforcement officers stopped Spadt and conducted a search of his vehicle in early 2025.
Loaded Handgun Found During Traffic Stop
According to court documents, Spadt was pulled over by officers in Great Falls on March 5, 2025. During the stop, authorities carried out a probation search of his truck.
Investigators discovered a 9mm handgun inside the vehicle. The firearm was loaded, with a round already in the chamber. Officers also found 9mm hollow-point ammunition during the search.
Federal prosecutors allege that Spadt was not legally allowed to possess either a firearm or ammunition because of a previous felony conviction.
Court records show that in October 2022, Spadt was convicted in Missoula County of partner or family member assault. As part of that conviction, he was registered as a violent offender and specifically prohibited from possessing firearms and ammunition.
Because of those restrictions, authorities moved forward with federal charges after the weapon was found in his truck.
Guilty Plea Entered In Federal Court
Spadt appeared before Chief U.S. District Judge Brian M. Morris and admitted guilt to the firearm possession charge.
Although he has entered a guilty plea, his sentence has not yet been determined.
Federal law allows for a maximum penalty of 15 years in prison, a fine of up to $250,000, three years of supervised release, and a mandatory $100 special assessment.
Judge Morris will determine the final sentence after reviewing the U.S. Sentencing Guidelines and other factors required under federal law.
Sentencing has been scheduled for Oct. 8, 2026.
Spadt was allowed to remain released pending further court proceedings.
The case is being prosecuted by the U.S. Attorney’s Office. The investigation was conducted by the Bureau of Alcohol, Tobacco, Firearms and Explosives along with the Great Falls Police Department.
Federal officials continue to emphasize that individuals who are prohibited from possessing firearms due to prior convictions can face serious penalties if they are found with weapons or ammunition. The upcoming sentencing hearing will determine what punishment Spadt ultimately receives for the offense.
