WAUKEGAN, Ill.  - Bears defensive tackle Terry "Tank" Johnson pleaded guilty to a misdemeanor weapons charge Monday as part of an arrangement with prosecutors that will keep him from serving additional time in jail.

The 25-year-old Johnson pleaded guilty to one count of possessing a firearm without an owner's identification, said Mary Stanton, chief of the Lake County Court's misdemeanor division.

He was ordered to serve 45 days in jail, which will be served concurrently with a four-month sentence he's already serving in the Cook County Jail for violating his probation, she said.

Johnson also was ordered to donate $2,500 to the Gurnee Police Department and $2,500 to the Gurnee Exchange Club's child abuse prevention program.

"I want to say that I very much regret the mistake in judgment that brought me here today," Johnson said during the 25-minute hearing. "My plea today is intended to convey that I accept responsibility for my actions."