(AP) — A 67-year-old suburban Kansas City man has pleaded guilty to federal charges related to buying $1.8 million in contraband cigarettes.

The U.S. Attorney’s office for western Missouri said in a release Wednesday that Randall H. McColley of Overland Park, Kan., waived his right to a grand jury and pleaded guilty to conspiracy to traffic in contraband cigarettes.

The prosecutor’s office says McColley admitted that he bought contraband cigarettes from undercover agents of the Bureau of Alcohol, Tobacco, Firearms and Explosives. The undercover agents sold him more than 100,000 cartons of contraband cigarettes between May 2011 and February 2012.

The prosecutor’s office says the cigarette packages did not bear the tax stamps required by federal and state laws.

McColley faces up to five years in prison.