MPN: UD10680


  • Ultimate recoil reduction
  • Timing nut included for easy installation and indexing
  • Indexing slots compatible with the Dynamount Front Sight allow for a standard upright alignment or a 45 degree offset
  • 100% CNC-machined quality
  • 100% Made in the USA


  • Caliber: 5.56 NATO / .223 Rem.
  • Material: 416 Stainless Steel
  • Finish: QPQ Nitride
  • Weight: 5.2 oz.
  • Length: 2.94"
  • Outer Diameter:
    • Muzzle End: 0.87"
    • Body: 0.98"
  • Bore Diameter: 0.272"
  • Thread: 1/2"-28 TPI


  • .223/5.56 barrel with 1/2"-28 thread pitch and a minimum thread length of 0.600 inches
  • Compatible with Dynamount front sight

*It is recommended to use this muzzle device on barrels 16" or longer due to the muzzle blast from aggressive recoil reduction.


  • 1x Ultradyne Apollo Max Muzzle Brake (.223/5.56)
  • 1x Cover Sleeve
  • 1x Shrouded Timing Nut


The Ultradyne Apollo Max Muzzle Brake was designed with high-performance shooting in mind and offered tactical benefits that civilians and professionals appreciate.

Made Durable and Easy To Install

The Ultradyne Apollo Max Muzzle Brake is manufactured from notoriously durable CNC machined 416 Stainless Steel, finished with a nitride salt bath for maximum longevity.

This muzzle brake is a drop-in installation, and the timing nut you need for installation is included.

Made To Support A Better Shooting Experience

This Ultradyne Muzzle Brake was strategically built to reduce recoil. Ultradyne applied advanced imaging and employed meticulous instruments to design and produce this muzzle brake to the high-quality standards their customers have come to expect.

Ultradyne's strategic design deflects gas from the shooter's sightline, which offers a smoother shooting experience, which supports improved accuracy.

The Ultradyne Apollo Max Muzzle Brake is compatible with Dynamount barrel mounting front sight, which prevents the sight deflection that occurs with handguard mounting front sight.

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