To amend title 18, United States Code, to prohibit transfer of a firearm to, or possession of a firearm by, a person convicted of a drug crime, and to provide enhanced penalties for possession of a firearm during a drug crime.

Amends the Federal criminal code to make it unlawful for any person: (1) who has been convicted in any court of a drug crime to possess a firearm; and (2) to transfer a firearm to any other person knowing or having reasonable cause to believe that such other person is under indictment for, or has been convicted in any court of, a drug crime. Provides penalties for a violation.

Sets forth additional penalties for possession of a firearm during a drug crime. Provides enhanced penalties if the firearm is a machinegun or is equipped with a firearm silencer or muffler and for subsequent convictions.