Second Amendment Protection Act of 2005 - Expresses the sense of Congress that the United States should not provide financial support to international entities that abridge the constitutionally protected rights of law-abiding U.S. citizens to keep and bear arms.
Prohibits U.S. funding to the United Nations for a fiscal year unless the President certifies to Congress that the United Nations has not taken action to restrict or otherwise adversely infringe upon the rights of U.S. individuals to possess a firearm or ammunition, including the imposition of a tax that will interfere with the right to own a firearm or ammunition.