MPN: CMB-556-AB / CMB-556-ADLC / CMB-556-AG / CMB-556-ARS / CMB-556-AS


  • Designed to withstand the elements while reducing recoil and muzzle rise
  • Available in a Black Nitride, Black DLC, Gold TiN, Rose Gold, and Silver
  • Manufacture in the U.S.A.


  • Caliber: .223 Rem. / 5.56 NATO
  • Material:
    • Silver: 316 Stainless Steel
    • All Others: AISI/SAE 4140 Low Alloy Steel
  • Finish: Black Nitride, Black DLC, Gold TiN, Rose Gold TiCN, or Silver CrN
  • Weight: 2.65 oz.
  • Length: 2.42"
  • Height: 0.749"
  • Width: 0.849"
  • Bore Diameter: 0.285"
  • Thread: 1/2"-28 TPI


  • Any .223 Rem. / 5.56 NATO barrel with 1/2"x28 TPI


  • 1x F-1 Firearms Angle Faced Compensating Muzzle Brake
  • 1x Crush Washer


Can you be a serious shooter without a muzzle device? Well, anyone who knows the story of Sgt. York will agree that you can. That doesn't mean that a muzzle brake or compensator can't help you be a better shooter. How much difference will a 556 muzzle brake make? That depends on the brake and your situation.

It's Part Of The Equation.

To think that you can add a 556 muzzle brake to your set-up and magically turn pro is ridiculous. To become better at anything requires the right equipment and practice, lots of practice. An F1 Firearms angle faced compensating brake will reduce the felt recoil and muzzle rise of your weapon. This fact alone will enable you to be more consistent when shooting. Consistency breeds accuracy. However, this isn't necessarily always that important. In CQC and self-defense scenarios, it is keeping your head clear that trumps muzzle rise and recoil. So, when is the added noise of a muzzle brake a welcome trade-off?

See The Shot

In a race-gun competition, split-seconds count. When you have an F1 Firearms angle faced compensating brake on your gun, you gain an advantage. That advantage is your muzzle staying flat on target for a quick double-tap. What if you're into long-range shooting or hunting. A 556 muzzle brake that has minimal dust signature and keeps your muzzle down gives you a second chance. The low-profile of the F1 angle faced compensating brake doesn't obstruct your view. Any optics you choose will easily see over this muzzle brake. A clear field of view with little recoil and muzzle rise is a deadly combination. Add that to a quick follow-up shot, and that's good for you.

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