GT-556 - Heavy-duty Suppressor for 5.56mm NATO

April 22, 2017

GSL’s new Heavy-Duty GT-556 suppressor for 5.56mm NATO is rated for full auto fire and mounts with a Bi-Lock quick disconnect flash hider with standard 1/2 – 28 – 2B threads.


  • Caliber: 5.56mm NATO
  • Sound Reduction: 32 dB
  • Length: 7″
  • Diameter: 1.50″
  • Weight: 13.5 oz. without QD adapter parts
  • Materials: Titanium/Inconel
  • Finish: High Temperature Cerakote
  • Mount: Bi-Lock QD

*For Barrels:

  • 10.5″ minimum length 5.56×45/.223

Packing Includes the following:

  • (1) 5.56mm Suppressor
  • (1) 1/2 – 28 – 2B Bi-Lock Mount Flash Hider for 5.56mm NATO (others available upon request)

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