Griffin Armament – HRT 556 – Dual-Lok – Black


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Griffin Armament’s HRT 556 was initially designed for elite HRT unit’s and is the shortest member of the DUAL-LOK family of suppressors. This suppressor utilizes the new DUAL-LOK active retention system and combined with years of R&D, has produced a highly durable, compact, low flash, and top performing suppressor to market for government customers. Now, it’s being released to the public!  

 The HRT 556 features the accurate, robust, and wear-free DUAL-LOK mounting system. The suppressor itself has minimal flash, weight, gas blowback, and yet has maximum sound reduction and strength. This suppressor also utilizes the ECO-Flow baffle technology which reduces back-pressure and increases flow, thus making the suppressor host operating system more reliable and unaffected by the silencer and providing cleaner air to the operator’s face.

Technical Specifications:

  • Weight: 14.4oz
  • Length: 5.9″
  • Diameter: 1.5″
  • Material: High Strength, High Temperature, Corrosion Resistant 17-4PH Stainless Steel
  • Finish: High Temp Cerakote
  • Thread Pitch: 1/2×28

What’s in the Box:

  • DUAL-LOK™ HRT 556 Suppressor
  • DUAL-LOK™ Minimalist Brake 1/2×28 5.56mm included
  • Owner’s Manual