The revolutionary SureFire WARCOMP-556-1/2-28 flash hider, which fits M4 / M16 weapons and variants with ½-28 muzzle threads, is the world’s most shootable flash hider. Its patent-pending design provides three valuable functions: 

• It provides over 99% reduction in muzzle flash compared to a plain muzzle, which helps to conceal the shooter’s location and preserve his dark-adapted vision.
• It virtually eliminates muzzle rise, which enhances monitoring of target reaction and staying on target for faster follow-up shots.
• It serves as a rock-solid mounting adapter for all SureFire SOCOM Series 5.56mm Fast-Attach®suppressors, including our SOCOM556-RC model, which 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 — including high-precision single-point cut threads for optimum thread interface — the WARCOMP-556-1/2-28 features an 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 Fast-Attach suppressor, the WARCOMP provides multiple bearing surfaces to ensure superior suppressor alignment and prevent any ringing of tines inside the suppressor. A rear labyrinth seal mitigates gas leaking from the back of a suppressor, minimizes potential carbon buildup in the indexing system, and facilitates suppressor removal after extended firing. Every SureFire WarComp is individually inspected for concentricity and alignment. 
• For rock-solid mounting of a SOCOM Series suppressor, unparalleled flash reduction, and minimizing muzzle rise, there’s literally nothing like a SureFire WarComp—the world’s most shootable flash hider. 
• FITS: M4, M16 and variants with ½-28 muzzle threads

MOUNTS: All SureFire SOCOM Series 5.56mm /.223 caliber sound suppressors 

NOTE: SureFire SOCOM Series Fast-Attach sound suppressors and current-model WarComps, muzzle brake and flash hider adapters are NOT compatible with previous (non-SOCOM) SureFire Fast-Attach sound suppressors, muzzle brakes, or flash hiders.

CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemical(s) known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov/product