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Questions & Answers
Compatible with SUREFIRE SOCOM556 RC2?

All SOCOM-marked brakes/flash suppressors are compatible with the SF-RC2.

by deprazor, Verified Owner, October 23, 2025
will this work with the surefire suppressor model FA556-212? Expert Answer

No, the "Original SOCOM" Surefire Fast Attach 556 Suppressor requires the Surefire 212-A, 215-A or 411-A muzzle device.

by Ethan, Gear Expert, April 21, 2023
Customer Reviews
Helpful Positive Review
Surfire warcomp by D, December 14, 2023
I like it! I got it for a pin and weld project, should work just fine.
3/3 found this helpful
Helpful Positive Review
no complaints by aznative, Verified Owner, May 30, 2023
Surefire is super solid and make great products. I’ve never had an issue with lights or muzzle devices. I have their electronics and silencers. They are all made with great materials that last and won’t break. Optics planet is great and they ship sup...
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1/2 found this helpful
Helpful Positive Review
Tayler Nez by Nez, December 14, 2023
The Flash hider is amazing and easy to attached an suppressor
1/1 found this helpful
Helpful Positive Review
SWEET little comp by Will Combs, March 13, 2024
I put a CTN on my primary AR15 in October 2022, and have sent thousands of rounds through it since. Long story short, I love it! The ports do a decent job of mitigating muzzle rise, but there's not much to mitigate on a 5.56, so whatever. For me, ...
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1/1 found this helpful
Most Recent Reviews
Surefire Muzzle device by Rob, Verified Owner, April 11, 2025
Well made, works well with Warden or QD suppressor, and as a stand alone. Good for short barreled weapons.
Most Recent Reviews
Great product by Jake, Verified Owner, September 11, 2024
Great fit and finish. Haven’t shot with it yet but looks awesome.
Read All 9 Reviews
Color: Black Caliber: 5.56x45mm NATO Finish: Matte black DLC coating Fabric/Material: US mill-certified heat-treated stainless steel Threads per Inch: 1/2x28 Gun Model: M4 , M16 Length: 2.48 inWeight: 2.7 ozIncluded Accessories: Suppressor Adapter Condition: New

Code: FS-BFH-WARW1-WARCOMP-556-CTN-1-2-28

MPN: WARCOMP-556-CTN-1/2-28

UPC: 084871325516

List: $169.00
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Product Info for SureFire M4/16 Rifles Ported Closed Tine Flash Hider/Suppressor Adapter

If a traditional birdcage flash hider is what you want, SureFires WARCOMP-556-CTN significantly reduces muzzle flash with every shot fired and helps reduce muzzle rise for easier target tracking and faster follow-up shots. Its closed tines reduce the chance you'll snag your barrel in environments where there is dense vegetation or other items that might catch an open-tine flash hider. Neutrally ported to aid in recoil management, it mimics that of a traditional birdcage flash hider while providing a rock-solid mounting option for SOCOM Series Fast-Attach suppressors. Wrench flats machined into the sides of the adapter allow for easier installation. The WARCOMP-556-CTN delivers the performance and durability you can trust.image

WARNING: California`s Proposition 65

Specifications for SureFire M4/16 Rifles Ported Closed Tine Flash Hider/Suppressor Adapter:

Manufacturer: SureFire
Color: Black
Caliber: 5.56x45mm NATO
Finish: Matte black DLC coating
Fabric/Material: US mill-certified heat-treated stainless steel
Threads per Inch: 1/2x28
Gun Model: M16, M4
Length: 2.48 in
Weight: 2.7 oz
Included Accessories: Suppressor Adapter
Condition: New

Features of SureFire M4/16 Rifles Ported Closed Tine Flash Hider/Suppressor Adapter

  • Closed-tine adapter significantly reduces muzzle flash, helping to conceal the shooter's location
  • CNC-machined to precisely align suppressor with the bore of host weapon
  • DLC coating provides maximum protection against harsh environmental conditions and facilitates cleaning after extreme use
  • High-precision single-point cut barrel threads for optimum thread interface; fits 1/2-28 threaded barrels
  • Individually inspected for all critical dimensions, including concentricity and alignment
  • Durable construction delivers a long service life

Package Contents:

  • SureFire M4/16 Rifles Ported Closed Tine Flash Hider/Suppressor Adapter

SureFire M4/16 Rifles Ported Closed Tine Flash Hider/Suppressor Adapter Orderable Models

List of Orderable Models

  • SureFire M4/16 Rifles Ported Closed Tine Flash Hider/Suppressor Adapters, WARCOMP-556-CTN-1/2-28 , MPN: WARCOMP-556-CTN-1/2-28 , UPC: 084871325516 , Code: FS-BFH-WARW1-WARCOMP-556-CTN-1-2-28

SureFire M4/16 Rifles Ported Closed Tine Flash Hider/Suppressor Adapter Unavailable & Discontinued Models

List of Unorderable Models

  • USED, SureFire M4/16 Rifles Ported Closed Tine Flash Hider/Suppressor Adapters, WARCOMP-556-CTN-1/2-28 , MPN: WARCOMP-556-CTN-1/2-28-EDEMO , Code: FS-BFH-WARW1-WARCOMP-556-CTN-1-2-28-EDEMO-US-C
  • DEMO, SureFire M4/16 Rifles Ported Closed Tine Flash Hider/Suppressor Adapters, WARCOMP-556-CTN-1/2-28 , MPN: WARCOMP-556-CTN-1/2-28-DEMO , Code: FS-BFH-WARW1-WARCOMP-556-CTN-1-2-28-DEMO
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