An man admitted Tuesday that he kept numerous unregistered machine guns and other firearms in his Atlantic County home, officials said. Michael John James, 30, of Somers Point, pleaded guilty to one count of possessing unregistered machine guns and other firearms, as defined under the National Firearms Act, according to a statement from the U.S. Attorney’s Office. James admitted in federal court Tuesday that he kept all of the items recovered by agents from his residence and that they were all operable at the time, according to the statement. In February, U.S. Customs and Border Patrol interce…