SureFire® WARCOMP 556 Flash Hider / Suppressor Adapter for M4/ 16 Rifles and Variants

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Out of stock


Caliber 5.56 mm (.223 caliber)
Length 2.67 inches


The revolutionary SureFire® WARCOMP-556-1/2-28 flash hider, which fits M4 / M16 weapons and variants with 1/2 x 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 1/2 x 28 muzzle threads

    For WarComp model fitting 7.62 mm (.308 caliber) rifles with 5/8-24 muzzle threads, see WarComp 762.

    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.
  • Patent-pending design provides over 99% flash elimination; virtually eliminates muzzle rise
  • Serves as rock-solid mounting adapter for SureFire SOCOM suppressors
  • Multiple bearing surfaces provide suppressor alignment and prevent tines from ringing inside suppressor
  • Precision machined from US mill-certified heat-treated stainless steel bar stock
  • High-precision single-point cut barrel threads for optimum thread interface
  • Individually inspected for all critical dimensions, including concentricity and alignment
  • Ionbond DLC coating provides maximum protection against harsh environmental conditions and facilitates cleaning after extreme use
  • Labyrinth seals prevent carbon buildup on suppressor lock ring indexing system
  • Installation requires no permanent modifications to weapon
  • Made in the USA and backed by SureFire No-Hassle Guarantee


ITAR Notice
    Export of the commodities described herein is strictly prohibited without a valid export license issued by the U.S. Department of State, Office of Defense Trade Controls, prescribed in the International Traffic in Arms Regulation (ITAR), Title 22, Code of Federal Regulations, Parts 120-130.

SureFire is Designed and Built in the USA

***This product contains chemicals/materials known to the State of California to cause cancer and other reproductive harm. To learn more, visit***

16 Reviews

  • 5
    Read the directions!!!

    Posted by J on Aug 20th 2019

    Clocking charts simplify install and help taylor to your shooting preference. No flash, and while it's "not a compensator" it reduces felt recoil to help keep your eye on the prize. Pilot for drilling to pin and weld is an added bonus....

  • 5
    absolutely the best !

    Posted by Colin Crandall on Jul 27th 2019

    There is no other boat compensator muzzle device trio and one that does the what does does!

  • 5
    is it a 22 or 223?

    Posted by Jeff R on Jul 17th 2019

    I can't tell anymore.

  • 5
    Warcomp/BCM Service

    Posted by Luke on Jun 4th 2019

    Shipped fast, got me exactly what I ordered. BCM is great.

  • 5
    Dual cool

    Posted by Ventage Shooter on Apr 14th 2019

    This is a fantastic flash hider, but also does a good job of reducing muzzle rise. It’s the best compromise break/flash hider I have used. It’s compatablebwith Sure fire suppresors as well as the surefire warden for those time when your shoot close to others and do not want to disrupt their ability to concentrate on there lane.

  • 5
    Is it a...

    Posted by Dave on Apr 14th 2019

    Fashion statement, or a necessity?

    My little tuning fork looks great! Hides great and works great with both factory, and hot hand loaded widgets too!

  • 5
    Customer review

    Posted by Kevin Montgomery on Apr 10th 2019

    Review body is empty

  • 5
    Customer review

    Posted by Greg W. on Apr 10th 2019

    Review body is empty

  • 5

    Posted by Ant on Apr 9th 2019

    Since I started ordering from bcm I haven't been disappointed. Great service and overall amazing products. Just got the warcomp pinned to my 14.5 mid length bcm upper. Looks and works amazing.