Terrence S. Jacobs Jr., 18, of 356 Main Ave., Norwalk, was arrested April 9 on charges of carrying a facsimile firearm and second-degree breach of peace.

New Canaan police said a woman who was driving on New Norwalk Road, near Lakeview Avenue, called 9-1-1 at 3 p.m. to report a suspicious person walking with an unconcealed gun, but she couldn't tell whether or not it was a real firearm.

Upon arrival, officers observed Jacobs with an unconcealed BB gun, according to the report.

He posted $2,500 bond and is scheduled to appear in court April 21.