SureFire 3 Prong Flash Hider - Suppressor Adapter - 1/2x28

Manufactured by SureFire
SKU: SF3P-556-1-2-28
MPN: SF3P-556-1/2-28
Manufactured by SureFire
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SureFire designs and manufactures a wide variety of firearms accessories, from weapon lights to suppressors. The leading manufacturer of rugged, powerful lights, SureFire is synonymous with excellence in handheld illumination.

The 3 Prong Flash Hider/Suppressor Adapter is an advanced flash hider compatible with AR-15/M16 weapons and variants with 1/2x28 muzzle threads. Featuring a design that greatly reduces muzzle flash and serves as a rigid mounting adapter for SureFire SOCOM Series 5.56 Fast-Attach suppressors. 

Precision machined from heat-treated stainless steel bar stock, this adapter includes high-precision single-point cut threads for optimum thread interface, finished with a Black Ionbond DLC coating for maximum corrosion protection. Designed with multiple bearing surfaces ensuring proper suppressor alignment. A rear labyrinth seal minimizes potential carbon buildup in the indexing system, facilitating removal after extended firing. Each flash hider is individually inspected for concentricity and alignment.

NOTE: SureFire SOCOM Series Fast-Attach sound suppressors, flash hider/suppressor adapters, and muzzle brake/suppressor adapters are not compatible with previous SureFire Fast-Attach sound suppressors, muzzle brakes, or flash hiders. 

  • Compatible with SOCOM Series 5.56mm/.223 caliber sound suppressors
  • 99% flash reduction
  • Heat-treated stainless steel bar stock
  • High-precision single-point cut barrel threads
  • Black Ionbond DLC coating
  • Mounting adapter for SureFire SOCOM Series sound suppressors
  • Labyrinth seals
  • No permanent modifications for AR-15 pattern weapons
  • Covered by SureFire’s No-Hassle Guarantee
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Caliber Gauge.22 Cal
MaterialSteel - Stainless
Suppressor MountSureFire Fast Attach
Thread Pattern1/2 X 28
Type3 Prong
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

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