An Anne Arundel County gun dealer has been charged with attempting to sell an unregistered machine gun after federal authorities traced a similar weapon found during a search of a Florida home owned by another man wanted by Prince George's County police on a charge of assault with intent to murder.

The gun dealer, James Corbett, who operates Eastcoast Law Enforcement and Hunting Supplies in Crofton, was arrested Friday after allegedly trying to sell the weapon to an undercover agent of the U.S. Alcohol, Tobacco and Firearms Bureau in Hollywood, Fla., police said.

Law enforcement officers found a Mac-10 machine gun equipped with a silencer, as well as hand grenades, mines and other explosives while searching the home of Christopher Dampman, 30, of Hollywood in February, said Paul Dungan, a Hollywood police spokesman. Dampman was charged with possession of stolen government property (the explosives) and the gun was traced to Corbett, police said.

Prince George's County police have charged Dampman with assault with intent to murder in connection with the Feb. 3 shooting of Kevin Brady, 31, of the 4000 block of Burlington Road, Hyattsville. Brady was shot once in the head on the sidewalk in the 3600 block of 52nd Avenue in Bladensburg, county police said, and has since been in a coma at Prince George's General Hospital.

Two other persons have been charged in connection with the Brady shooting, county police said.