SureFire ProComp Muzzle Brake - 1/2X28

Manufactured by SureFire
SKU: PROCOMP556-1-2-28
MPN: PROCOMP556-1-2-28
Manufactured by SureFire
8 Reviews

In Stock

Standard orders will ship out same day if ordered by 3:30pm CST. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination.



The advanced SureFire PROCOMP 556 Muzzle Brake for AR-15/M16 rifles greatly reduces recoil impulse and muzzle rise to keep you on target for faster shot recovery.

Its patented Impulse Diffusion design minimizes side blast and rear-directed concussion effects. Precision machined from U.S. mill-certified steel bar stock with a Melonite finish providing maximum corrosion resistance.

Blind pilot holes at the 3 and 9-o’clock positions enable fine-tuning of recoil characteristics while an additional pilot hole at the 6-o’clock allows indexing the adapter at bottom dead center.

NOTE: Not compatible with SureFire Fast-Attach suppressors.

  • U.S. mill-certified steel bar stock
  • High-precision barrel threads - 1/2x28
  • Pilot holes
  • Melonite finish
  • No permanent modification required
  • Caliber: 5.56 mm (.223 caliber)
  • Length: 2.5”
  • Covered by SureFire’s No-Hassle Promise
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FinishSalt Bath Nitride
Suppressor MountNon-Mount
Thread Pattern1/2 X 28
TypeMuzzle Brake

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, see

Ratings & Reviews

8 reviews

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Surefire Procomp muzzle brake.


This brake actually helped my accuracy with the heavier 77 grain handloads! It stabilizes the barrel very well of course, but I don't believe that is the reason it has enhanced the accuracy of my 18" 1/8 twist barrel. It has to be in the design, and being Surefire, I am sure they did not slap one together without any engineering. Now I know why so many match shooters use them. A great brake, at a great price.

Great comp, new favorite


I couldn't believe the review videos but they're all true. This comp leaves my 16" rifle dead centered with very little recoil at all during rapid fire. Best I've tried to date for fast target re-acquisition with a red dot. Being surefire I would expect it to be quality design and finish but I also would expect it to cost 4x what it does. Best bang for the buck imo. Noisy, but it does exactly what it's designed to do.

Sure fire Procomp MB 5.56 mm MM 0.5 x 28


This muzzle device is one of the top five muzzle breaks in the USA I like it and I like the price thank you primary arms for your fast and reliable service.



Surefire quality, low price. It was easy to install and works much better than the BCM mod 0 that I was previously using.

PA is the best

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Great muzzle break, at an awesome price
<br>Ordered on sat. and at my door on Monday..PA Never dissappoints

Very Pleased!

by -

This brake works as intended. It allows quick follow up shots and accurate rapid fire. However, since it is not a flash hider, it would not be good to use with night vision or night firing in general. If you do any work with team members close at your side, it would not be good to use, since the blast is pushed out to the sides. This would be true of most any brake. As expected with a brake, it does increase the noise level but not too bad. Good product that works as advertised, just know its limitations.

Surefire procomp muzzle breaks work


These work great. I have them on two of my AR's in 5.56 they are loud though. But boy do they work!

Great service-Great brake!!

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Great brake, a little louder than the Claymore brake it replaced but, what the hell, let’s make some noise!! Does a fine job of canceling out recoil. Excellent service from PA as usual, 3 days ground shipping to the Tundra of northern MN.