A judge has sentenced a British man to at least 11 years in prison for selling handguns smuggled into the country by a former U.S. Marine.

Prosecutors say Steven Cardwell sold guns imported by ex-Marine Steven Greenoe, who hid them in his luggage on trans-Atlantic flights.

Greenoe was arrested in July 2010 at Raleigh-Durham International Airport in North Carolina with 16 guns in his suitcase. He has been jailed for exporting weapons without a license.

Prosecutors say he smuggled at least 63 weapons into Britain, where handguns are banned and few police officers carry firearms. Only 10 have been recovered.

At Liverpool Crown Court on Friday, judge Elgan Edwards gave Cardwell a mininum 11-year sentence.