Former NFL star Muhammad Wilkerson was arrested again last week ... after cops say he drove drunk with a loaded gun tucked beneath his car seat.
According to court documents, obtained by TMZ Sports, Wilkerson was initially pulled over by police in Morris County, New Jersey back on Dec. 22 at 6:41 AM.
During the stop, cops suspected he was under the influence ... saying a strong odor of alcohol was emanating from the former New York Jets pass rusher's ride.
In the docs, cops say at one point during questioning, Wilkerson told them he was coming from a New York City club .