Gamo Swarm Maxxim Spring-Piston Rifle from Mexico
Break-barrel .177 caliber air rifle using spring-piston mechanism to compress air and propel pellets. HTS 9304.00.4000 covers spring mechanism guns excluding high-power exceptions. Features 10X Gen2 magazine system for rapid follow-up shots.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Include mechanism diagram showing spring release to avoid confusion with CO2 models
• Test-fire reports confirming velocity under thresholds prevent reclassification to 9304.00.20
• Label as 'recreational airgun' not 'hunting rifle' to aid customs review