1. Short title This Act may be cited as the Ammunition Modernization and Monitoring Oversight Act or the AMMO Act . 2. Federal license required to deal in ammunition (a) In general Section 922(a)(1)(B) of title 18, United States Code, is amended— (1) by striking or licensed manufacturer and inserting licensed manufacturer, or licensed dealer ; and (2) by striking or manufacturing and inserting manufacturing, or dealing in . (b) Conforming amendments (1) Definition of dealer Section 921(a)(11)(A) of such title is amended by inserting or ammunition after firearms . (2) License fee Section 923(a)(3)(B) of such title is amended by striking who is not a dealer in destructive devices and inserting in firearms other than destructive devices or ammunition for firearms other than destructive devices . 3. Ammunition recordkeeping requirement for certain licensees Section 923(g)(1) of title 18, United States Code, is amended— (1) in subparagraph (A), by inserting or ammunition after firearms ; and (2) in each of subparagraphs (B)(iii) and (C)(ii), by inserting , or of ammunition, after firearms . 4. Prohibition on straw purchase of ammunition Section 932 of title 18, United States Code, is amended in each of subsections (b) and (c)(2), by inserting or ammunition after firearm each place it appears. 5. Restriction on bulk ammunition sales (a) In general Section 922 of title 18, United States Code, is amended by adding at the end the following: (aa) (1) It shall be unlawful for any person licensed under this chapter to transfer to a person not so licensed— (A) more than 100 rounds of .50 caliber ammunition or more than 1,000 rounds of any other caliber of ammunition in any period of 5 consecutive days