Surefire Flash Hider / Suppressor Adapter - 556

SF3P-556-1/2-28

  • $171.99

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The advanced SureFire SF3P-556-1/2-28 three-prong flash hider, which fits M4/M16 weapons and variants with 1/2x28 muzzle threads, features a patent-pending design that greatly reduces muzzle flash—typically greater than 99%—when compared with a plain muzzle. Boasting robust tines built to withstand the rigors of combat, the SF3P-556-1/2-28 also serves as a rock-solid mounting adapter for SureFire SOCOM Series 5.56 mm Fast-Attach® suppressors, the SOCOM556-RC model having placed first in the most extensive and rigorous suppressor testing ever conducted by US Special Operations Command. 

Precision machined from US mill-certified heat-treated stainless steel bar stock—and including high-precision single-point cut threads for optimum thread interface—the SF3P-556-1/2-28 flash hider is given a black Ionbond DLC coating to provide maximum protection under harsh environmental conditions and to facilitate cleaning, even after extreme use. 

When used in conjunction with a SureFire SOCOM Series suppressor, the patent-pending design of the SF3P-556-1/2-28 provides multiple bearing surfaces to ensure superior suppressor alignment and to prevent the audible ringing of tines inside the suppressor. A rear labyrinth seal minimizes potential carbon buildup in the indexing system and facilitates suppressor removal after extended firing. 

  • Patent-pending design provides greater than a 99% reduction in flash, when compared to a plain muzzle
  • Multiple bearing surfaces provide superior suppressor alignment and prevent ringing of tines inside suppressor
  • Precision machined from US mill-certified heat-treated stainless steel bar stock
  • High-precision single-point cut barrel threads create optimum thread interface
  • Inspected for all critical dimensions including concentricity and alignment
  • Black Ionbond DLC coating provides maximum protection against harsh environmental conditions and facilitates cleaning after extreme use
  • Serves as rock-solid mounting adapter for SureFire SOCOM Series sound suppressors
  • Labyrinth seals mitigate gas leak from suppressor lock ring
  • Installation requires no permanent modifications for M4 / M16 / AR15 type weapons

Caliber 5.56 mm (.223 caliber)

Length 2.67 inches

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