To amend title 18, United States Code, to provide a mandatory minimum sentence for the unlawful possession of a firearm by a convicted felon, a fugitive from justice, a person who is addicted to, or an unlawful user of, a controlled substance, or a transferor or receiver of a stolen firearm, to increase the general penalty for violation of Federal firearms laws, and to increase the enhanced penalties provided for the possession of a firearm in connection with a crime of violence or drug trafficking crime.

Amends the Federal criminal code to require a minimum sentence of five years' imprisonment for the unlawful possession of a firearm by any person who: (1) has been convicted of a crime punishable by more than one year's imprisonment; (2) is a fugitive from justice; (3) is an unlawful user of or addicted to any controlled substance; (4) has transported in interstate commerce any stolen firearm; or (5) has received any stolen firearm.

Prohibits: (1) the court from placing on probation or suspending the sentence of any person convicted under such provision; and (2) the term of imprisonment under such provision from running concurrently with any other term of imprisonment.

Increases: (1) the fine and term of imprisonment for violation of Federal firearms laws; and (2) the penalties for possession of a firearm in connection with a crime of violence or drug trafficking.