40mm M381 High-Explosive Grenade from Japan
The 40mm M381 is a high-explosive round designed for grenade launchers like the M203, featuring a steel body with Composition B filling and impact fuze. Classified under HTS 9306.90.00.50 as 'other' munitions of war, it represents projectile ammunition beyond small arms cartridges. This subheading captures launcher-fired grenades as complete projectiles.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Declare as UN0012 explosive for hazardous materials shipping; secure DDTC approval for defense trade controls
• Verify launcher compatibility in documentation to prevent reclassification as small arms ammo
• Use licensed munitions handlers for customs clearance