Plan your Class 3 dealer
Suppressors go through a Class 3 (SOT) dealer. The federal tax is $0, and ATF stopped enforcing the Form 4 wait on October 9, 2026, but some states still require federal registration. You still pay the dealer's transfer fee.
Yankee Hill Machine
Overview
The YHM Fat Cat is a suppressor. Compare prices from multiple merchants and find the best deal.
Build history on GunPartPicker
Builders on GunPartPicker first added the YHM Fat Cat to a build in April 2026.
It was hard to find in September 2026, in stock on only 3 of the 11 days we checked, and today none of the 2 retailers we track has it in stock right now. It dipped to $609 at BattleHawk Armory for a stretch in September 2026, well under its usual $699.95, so sales do come around. Listed prices start at $609 at BattleHawk Armory for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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