The Griffin Armament Dual-Lok HRT (brand part no. GADLHRT5FDEW) is a .223/5.56-rated suppressor finished in FDE, originally designed for an elite HRT unit and later released to the public as the shortest addition to Griffin’s Dual-Lok family. Griffin Armament attaches the HRT-556 via its Dual-Lok active retention mounting system, an accurate and wear-free design that was in demand by government customers. The Dual-Lok HRT favors 5.56 shooters who want a compact, mission-proven suppressor with a fast-attach mount.

Key Specifications

• Rated for .223 Remington/5.56 NATO ammunition.
• Attaches via the Dual-Lok active retention mounting system.
• Finished in FDE.
• Originally designed for elite HRT unit use before public release.

Frequently Asked Questions

Is this an NFA item? Yes. As a suppressor, it's a Title II firearm requiring an approved ATF Form 4 and transfer through an NFA-licensed dealer.

What caliber is it rated for? .223/5.56.

How does it attach? Via the Dual-Lok active retention mounting system.

Buy the Griffin Armament Dual-Lok HRT Suppressor

This is a Title II item regulated under the National Firearms Act. Purchase requires an approved ATF Form 4 and transfer through a licensed NFA (SOT/Class 3) dealer, with no federal transfer tax and an extended federal approval wait before delivery. Order through Griffin Armament‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will walk you through the transfer process.