MPN: MB-556


  • Slotted baffles at 12, 4, and 8 O'clock position
  • Reduces muzzle climb
  • Comes with crush washer
  • Made in the U.S.A.


  • Caliber: 5.56 NATO / .223 Rem
  • Material: Steel
  • Finish: Black
  • Weight: 2.4 oz.
  • Length: 2.13"
  • Outer Diameter: 0.865"
  • Bore Diameter: 0.25"
  • Thread: 1/2"-28 TPI


  • .223/5.56 barrel with 1/2"-28 thread pitch


  • 1x HM Defense 5.56 Muzzle Brake
  • 1x Crush Washer


There comes a time in every shooter’s life when out of the box performance isn’t thrilling anymore. You need more control and accuracy, spraying lead has lost its appeal. One of the most significant steps you can take to gaining better control of your AR-15 and increasing your speed and accuracy is to add a quality muzzle brake. The HM Defense Muzzle Brake features an innovative design that not only promises outstanding performance, but it’ll turn heads on the range too.

The HM Defense Muzzle Brake a Shape Beyond

The unique look and over the top effectiveness of the HM Brake is possible thanks to HM’s willingness to get out of the comfortable box that other manufacturers live in. The wicked cloverleaf design of the HM Defense Brake isn’t just a surface treatment. This brake features slotted baffles at the 12, 4 and 8-o’clock positions. These allow the release and redirection of muzzle blast and gasses to mitigate muzzle climb, producing a more stable firearm and ultimately a more accurate shot. The unique cloverleaf bore allows free expulsion of gasses moving forward decreasing back pressure when compared with brakes featuring narrower, more restricted bore paths.

What Does it Mean to the Shooter?

This all comes down to the same thing, less recoil and muzzle motion allows the shooter better accuracy and easier follow-up shots. Mitigate recoil and you not only control the motion of the gun, you’re relieved from anticipating the kick making you a more confident shooter. Remove muzzle rise and you also remove the need to continuously reacquire the target for each shot. Make it look wicked while doing it all? Well, that produces range envy. Who doesn’t want that?

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