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Suppressors go through a Class 3 (SOT) dealer, and the federal tax on them has been $0 since January 1, 2026. You still pay the dealer's transfer fee. Some states only allow suppressors and SBRs that are federally registered or possessed in compliance with federal law. Check your state's statute before you buy.
Federal and state suppressor rulesGriffin Armament
Overview
The Griffin Armament GP5 is a direct thread suppressor designed for 5.56 NATO caliber firearms. Its direct thread mount ensures a secure and permanent attachment to your rifle, providing a streamlined profile and effective sound reduction. This suppressor is well-suited for builds focused on precision shooting or tactical applications, where minimizing noise and muzzle rise is essential.
Griffin Armament GP5 5.56mm Direct Thread Rifle Suppressor, 1/2x28 - GAGP5-W
Builders have added the Griffin Armament GP5 5.56mm Direct Thread Rifle Suppressor, 1/2x28 - GAGP5-W to their builds on GunPartPicker. Since April 2026, it ranks #182 of the 528 suppressors builders have added.
It was out of stock everywhere we track every time we checked in October 2026, and today none of the 2 retailers we track has it in stock right now. Listed prices start at $494.96 at KY Gun Company for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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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Builds in the community that include the Griffin Armament GP5 5.56mm Direct Thread Rifle Suppressor, 1/2x28 - GAGP5-W
| Build | Parts | Total |
|---|---|---|
![]() | 20 | $4023.35 |
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