Magazine Extension Tube from Mexico
A 12-gauge magazine extension tube increases shotgun capacity for Remington 1100, classified under HTS 9305.99.60.00 as an accessory for heading 9303 shotguns. It threads onto the factory magazine tube.
Duty Rate — Mexico → United States
12.9%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Declare exact capacity increase (e.g
• +2 rounds) and gauge/thread specs
• Aluminum tubes need anodizing type specification
• Note compliance with federal 922(g) parts count rules