SECTION 1. SHORT TITLE.

    This Act may be cited as the ``Large Capacity Ammunition Feeding 
Device Act of 2013''.

SEC. 2. PROHIBITION ON TRANSFER OR POSSESSION OF LARGE CAPACITY 
              AMMUNITION FEEDING DEVICES.

    (a) Definition.--Section 921(a) of title 18, United States Code, is 
amended by inserting after paragraph (29) the following:
            ``(30) The term `large capacity ammunition feeding 
        device'--
                    ``(A) means a magazine, belt, drum, feed strip, or 
                similar device, including any such device joined or 
                coupled with another in any manner, that has a capacity 
                of, or that can be readily restored or converted to 
                accept, more than 10 rounds of ammunition; and
                    ``(B) does not include an attached tubular device 
                designed to accept, and capable of operating only with, 
                .22 caliber rimfire ammunition.''.
    (b) Prohibitions.--Section 922 of title 18, United States Code, is 
amended by inserting after subsection (u) the following:
    ``(v)(1)(A)(i) Except as provided in clause (ii), it shall be 
unlawful for a person to transfer or possess a large capacity 
ammunition feeding device.
    ``(ii) Clause (i) shall not apply to the possession of a large 
capacity ammunition feeding device otherwise lawfully possessed within 
the United States on or before the date of the enactment of the Large 
Capacity Ammunition Feeding Device Act of 2013.
    ``(B) It shall be unlawful for any person to import or bring into 
the United States a large capacity ammunition feeding device.
    ``(2) Paragraph (1) shall not apply to--
            ``(A) a manufacture for, transfer to, or possession by the 
        United States or a department or agency of the United States or 
        a State or a department, agency, or political subdivision of a 
        State, or a transfer to or possession by a law enforcement 
        officer employed by such an entity for purposes of law 
        enforcement (whether on or off duty);
            ``(B) a transfer to a licensee under title I of the Atomic 
        Energy Act of 1954 for purposes of establishing and maintaining 
        an on-site physical protection system and security organization 
        required by Federal law, or possession by an employee or 
        contractor of such a licensee on-site for such purposes or off-
        site for purposes of licensee-authorized training or 
        transportation of nuclear materials;
            ``(C) the possession, by an individual who is retired from 
        service with a law enforcement agency and is not otherwise 
        prohibited from receiving ammunition, of a large capacity 
        ammunition feeding device transferred to the individual by the 
        agency upon that retirement; or
            ``(D) a manufacture, transfer, or possession of a large 
        capacity ammunition feeding device by a licensed manufacturer 
        or licensed importer for the purposes of testing or 
        experimentation authorized by the Attorney General.''.
    (c) Penalties.--Section 924 of title 18, United States Code, is 
amended--
            (1) in subsection (a), by adding at the end the following:
    ``(8) Whoever knowingly violates section 922(v) shall be fined 
under this title, imprisoned not more than 10 years, or both.''; and
            (2) in subsection (d)--
                    (A) in paragraph (1)--
                            (i) by striking ``Any firearm or 
                        ammunition'' and inserting ``Any firearm, 
                        ammunition, or large capacity ammunition 
                        feeding device'';
                            (ii) by striking ``or (k)'' and inserting 
                        ``(k), or (v)'';
                            (iii) by striking ``or any firearm or 
                        ammunition'' and inserting ``or any firearm, 
                        ammunition, or large capacity ammunition 
                        feeding device''; and
                            (iv) by striking ``firearms or ammunition'' 
                        and inserting ``firearms, ammunition, or large 
                        capacity ammunition feeding devices'' each 
                        place the term appears; and
                    (B) in paragraph (3)(E), by inserting ``922(v),'' 
                after ``922(n),''.
    (d) Identification and Markings.--Section 923(i) of title 18, 
United States Code, is amended--
            (1) by striking ``Licensed importers'' and inserting the 
        following: ``(1) Licensed importers''; and
            (2) by adding at the end the following:
    ``(2) A large capacity ammunition feeding device manufactured by 
any person after the date of enactment of the Large Capacity Ammunition 
Feeding Device Act of 2013 shall be identified by a serial number and 
the date on which the device was manufactured, and such other 
identification as the Attorney General may by regulation prescribe.''.
Large Capacity Ammunition Feeding Device Act of 2013 - Amends the Brady Handgun Violence Prevention Act to prohibit: (1) the transfer or possession of a large capacity ammunition feeding device, except for such a device lawfully possessed within the United States on or before the date of this Act's enactment; and (2) the importation or bringing into the United States of such a device. Exempts: (1) the transfer or possession of such a device by a federal, state, or local agency or law enforcement officer; (2) certain transfers to licensees under the Atomic Energy Act of 1954; (3) possession of such a device transferred to an individual upon retirement from a law enforcement agency if such individual is not otherwise prohibited from receiving ammunition; and (4) the manufacture, transfer, or possession of such a device by a licensed manufacturer or importer for authorized testing or experimentation purposes. Sets penalties for violations. Subjects devices used or involved in knowing violation of such Act to seizure and forfeiture. Requires a large capacity ammunition feeding device manufactured after this Act's enactment to be identified by a serial number and the date it was manufactured.
Large Capacity Ammunition Feeding Device Act of 2013