Undetectable Firearms Modernization Act of 2013

To reauthorize the Undetectable Firearms Act of 1988 for 10 years and to close a loophole in the Act. 1. Short title This Act may be cited as the Undetectable Firearms Modernization Act of 2013 2. Amendments to prohibition on un­de­tect­able firearms (a) Extension of sunset provision Section 2(f)(2) of the Undetectable Firearms Act of 1988 ( Public Law 100–649 18 U.S.C. 922 25 35 (b) Other amendments Section 922(p) (1) in paragraph (1)— (A) in subparagraph (A), by striking grips, stocks, and magazines all parts other than major components (B) in subparagraph (B), by striking when subjected to inspection by the types of x-ray machines commonly used at airports, does not generate if subjected to inspection by the types of detection devices commonly used at airports for security screening, would not generate (2) in paragraph (2)— (A) by striking subparagraph (B) and inserting the following: (B) the term major component (i) means the slide or cylinder, or the frame or receiver of the firearm; and (ii) in the case of a rifle or shotgun, includes the barrel of the firearm; and ; and (B) by striking subparagraph (C) and the proviso that follows and inserting the following: (C) the term Security Exemplar (i) constructed of 3.7 ounces of material type 17–4 PH stainless steel in a shape resembling a handgun; and (ii) suitable for testing and calibrating metal detectors. ; (3) in paragraph (3)— (A) in the first sentence, by inserting after of a firearm , including a prototype, (B) by striking the second sentence; and (4) in paragraph (5), by striking shall not apply to any firearm which (A) any firearm received by, in the possession of, or under the control of the United States; or (B) the manufacture, importation, possession, transfer, receipt, shipment, or delivery of a firearm by a licensed manufacturer or licensed importer pursuant to an existing contract with the United States. .

Summary: Undetectable Firearms Modernization Act of 2013 - Amends the Undetectable Firearms Act of 1988 to extend such Act for 10 years. Revises what are prohibited firearms to include any firearm: (1) that, after removal of all parts other than major components (currently, of grips, stocks, and magazines), is not as detectable by walk-through metal detectors as the Security Exemplar; or (2) any major component of which, if subjected to inspection by the types of detection devices (currently, x-ray machines) commonly used at airports for security screening, would not generate an image that accurately depicts the shape of the component. Modifies the definition of: (1) "major component" to include the barrel of a firearm only in the case of a rifle or shotgun; and (2) "Security Exemplar" to repeal the requirement that it be fabricated within 12 months after enactment of such Act. Exempts from undetectable firearms provisions: (1) a prototype firearm for detectability testing; (2) any firearm received by, in the possession of, or under the control of the United States; or (3) the manufacture, importation, possession, transfer, receipt, shipment, or delivery of a firearm by a licensed manufacturer or licensed importer pursuant to an existing contract with the United States. (Replaces the exemption of any firearm that has been certified by the Secretary of Defense [DOD] or the Director of Central Intelligence [CIA] as necessary for military or intelligence applications or that is manufactured and sold exclusively to U.S. military or intelligence agencies.)