Mikel Brady, 24, now faces up to ten years in prison for that charge.
Brady was indicted in May for possession of a firearm and possession of ammunition by a convicted felon following an investigation into the February 18, 2013, shooting of Trooper Michael Potts.
Brady pleaded guilty to possession of a firearm by a convicted felon. He faces up to ten years imprisonment, up to three years supervised release, and a fine of up to $250,000.
Sentencing is set for Nov.25 in Greensboro.
Trooper shooting suspect pleads guilty to federal firearms charges