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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.
KGM Suppressors
Overview
The KGM Suppressors Adapter for HUB 12x28 is designed to allow seamless attachment of suppressors to firearms equipped with a HUB mounting system. Crafted from lightweight titanium, this adapter balances durability with minimal added weight, ensuring optimal performance without compromising the build. This product is commonly found in precision-oriented builds where suppressor integration is essential for noise reduction and enhanced accuracy.
We ranked every suppressor by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Suppressor Guide →Check it against the live catalog:
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