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SureFire MB556K Muzzle Brake/Adapter
SureFire MB556K Muzzle Brake Adapter
SureFire MB556K Muzzle Brake Adapter

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List Price: $149.00
Our Price: $134.10

Stock Status:(Out of Stock)
Product Code: SUR.607


SureFire MB556K Muzzle Brake/Adapter

Enables attachment of FA556K or FA556-212 suppressors to Colt Commando, M4, M16, HK 416 with 14.5" or longer barrel, and to other 5.56mm (.223 cal.) semi-auto, bolt-action, or assault rifles with Mil-Spec 1/2-28 muzzle threads and (due to slight overlap) first .170" of barrel behind thread shoulder clear of obstructions and no more than .800" in diameter. This adapter functions alone as a high-performance muzzle brake when the suppressor is removed. Patented design greatly diffuses side blast, counteracts up/right muzzle movement to keep muzzle on target, eliminates felt concussion on shooter. Heat-treated stainless steel construction.


* Provides rock-solid suppressor attachment in seconds without tools
* Precise tolerances provide minimal and consistent zero shift regardless of number of attach/detach cycles
* Acts as flash hider/compensator when suppressor is removed.
* High resistance to heat and gas/particle erosion
* Installation requires no permanent modifications for M4, M16, AR15 type weapons


Caliber: 5.56 mm (.223)
Material: Heat-treated stainless steel
Length: 2.49 inches
Length added to wpn: 1.86 inches
Adapter threads: 1/2-28 (Mil-Spec)
Color: Black

Additional Info
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5 of 5 Total Reviews: 3 Write a Review

  1 of 1 people found the following review helpful:
impressed! June 17, 2013
Reviewer: Rage X from Portland, OR United States  
this brake WORKS!
muzzle rise, gone.
follow up shots? check.
rock solid suppressor attachment, check.
how about the recoil? what recoil?
yes it is VERY LOUD. but that is all solved by mounting a suppressor :D

if you have ever had reservations about getting this muzzle brake, get it!
you will not be disappointed.

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  0 of 0 people found the following review helpful:
MB556 February 9, 2012
Reviewer: Nate from Seattle, WA United States  
worth every dollar spent....  you have to try it to believe it.    second shots are easier with this on.

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  1 of 2 people found the following review helpful:
Great Product January 11, 2010
Reviewer: Cory Esson from Grove City, OH United States  
This thing is the bees knees!!!! But its VERY loud (just the way i like it).  Great muzzle control allows me to make very fast follow up shots very accurately. If you have the money, buy it well worth the money!

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