Philadelphia Eagles linebacker Nigel Bradham has pled not guilty to a concealed weapons charge -- after allegedly taking a loaded gun through the airport earlier this month.
TMZ Sports broke the story ... Bradham was popped at Miami International Airport on Oct. 2nd after officials say he put a loaded firearm through the TSA screening machine.
We're told Bradham had a concealed weapons permit -- but the bigger issue is that he was out on bond from an unrelated assault case where one of the terms was he wasn't allowed to carry a gun.
The concealed weapons charge is a 2nd degree misdemeanor and if he's convicted, he could face up to 6 months in jail.
Bradham is a major part of the Eagles defense -- and led the team in tackles in Sunday night's loss to the Cowboys.