5.56x45mm NATO Cartridge from Mexico
Military-spec cartridge interchangeable with .223 Remington, typically 62-grain with steel penetrator. Classified under HTS 9306.30.41 for imported small arms ammunition despite NATO designation. Restricted for civilian import without sporting certification.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit ATF Form 6 for permanent import; prove sporting purpose to avoid ITAR denial
• Magnetic separators needed if steel-cased; declare core material composition