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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.
CGS
Overview
The CGS Suppressors Piston is engineered for 9mm firearms, designed specifically to attach to your MOD9 suppressor with a 5/8"-24 tpi thread pitch. This piston facilitates a direct connection, enhancing your shooting experience by effectively reducing noise and improving accuracy. It’s commonly found in builds focused on maximizing sound suppression and performance in tactical or competitive shooting scenarios.
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Builders on GunPartPicker first added the CGS Suppressors Piston 5/8"-24 tpi for MOD9, Black - CGS-KRK-5/8X24PISTBK to a build in June 2026.
Updated · from real builds on GunPartPicker
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