Griffin Armament HRT-556 DUAL-LOK Suppressor 5.56mm

The Griffin Armament HRT-556 DUAL-LOK suppressor is listed for .223 Remington/5.56 NATO applications and uses a DUAL-LOK mounting system. Its construction combines 17-4PH stainless steel with 718 Inconel, and the included DUAL-LOK Minimalist Brake uses a 1/2×28 thread pattern.

The design incorporates a taper-lock interface, ACME attachment threads, an anti-rotation locking ring, and an ECO-FLOW baffle system. The suppressor body receives H900 heat treatment and a high-temperature Cerakote finish.

Key Specifications

• The listed caliber compatibility is .223 Remington/5.56 NATO.
• The suppressor diameter is listed as 1.50 inches.
• The listed overall length is 5.9 inches.
• The listed added length with the included Minimalist Brake is 4.5.
• The listed added length with longer devices is 3.5.
• Construction uses 17-4PH stainless steel and 718 Inconel.
• The attachment system is DUAL-LOK.
• The finish is high-temperature Cerakote.
• The suppressor is listed as full-auto rated.
• The included muzzle device is a DUAL-LOK Minimalist Brake with a 1/2×28 thread pattern.

With its wear-free mounting system, locking features, heat-resistant materials, and included mounting brake, the HRT-556 provides a clearly specified configuration for customers seeking a Griffin Armament DUAL-LOK suppressor for lawful use where permitted.

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