TriStar Viper Magazine Extension Tube from Japan
An aftermarket tube extending magazine capacity on TriStar Viper shotguns. Classified HTS 9305.20.80.33 as other shotgun part. Threads directly to receiver.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• ATF approval for capacity increases
• Value separately per notes