Griffin Armament DUAL-LOK HRT-556 FDE Suppressor

The Griffin Armament DUAL-LOK HRT-556 is a compact suppressor built around the DUAL-LOK mounting system and a high-strength stainless steel and Inconel construction. It features a Flat Dark Earth high-temperature Cerakote finish, ECO-FLOW baffles, and a flash-reducing end cap. The included DUAL-LOK Minimalist Brake uses a 1/2×28 thread pattern.

Key Specifications

• The suppressor measures 1.50 inches in diameter.
• The overall length is 5.9 inches.
• The length added is listed as 4.5 inches with the included Minimalist Brake and 3.5 inches with longer devices.
• The listed caliber rating extends up to .22-250 Rem..
• The included Minimalist Brake uses a 1/2×28 thread pattern and is designated for 5.56mm.
• The construction combines 17-4PH stainless steel and 718 Inconel.
• The suppressor uses the DUAL-LOK mounting system with a taper-lock interface, ACME thread, and locking ring.
• The finish is Flat Dark Earth high-temperature Cerakote.
• The suppressor is full-auto rated.
• The package includes a DUAL-LOK Minimalist Brake, Griffin pouch, and HRT-556 manual.

With its compact dimensions, durable high-temperature materials, and retention-focused mounting design, the DUAL-LOK HRT-556 is configured for users who value consistent attachment, reduced back pressure, and a practical finish. Its included brake and integrated mounting features provide a complete, purpose-built setup for compatible applications.

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