MPN: UD10660


  • Forward gas venting reduces sound by directing less blast back toward the shooter
  • 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: 4.7 oz.
  • Length: 1.69"
  • Outer Diameter:
    • Muzzle End: 0.88"
    • Body: 0.97"
  • Bore Diameter: 0.273"
  • 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


  • 1x Ultradyne Athena Linear Compensator (.223/5.56)
  • 1x Cover Sleeve
  • 1x Shrouded Timing Nut


The Athena linear compensator from Ultradyne for .223/5.56 caliber firearms is designed with a forward-directed signature that provides for greater shooter control and comfort. The compensator is designed to limit muzzle rise or jump and significantly reduce perceived noise.

Enhanced Performance

The Ultradyne Athena linear compensator reduces muzzle jump and limits perceived noise by venting gas at an angle and then forward, away from the shooter and bystanders. The Athena compensator provides a sleeker appearance compared to traditional-style compensators and is compatible with the Dynamount sighting system.

Quality Construction

The Ultradyne Athena linear compensator is designed with indexing slots that permit standard upright alignment or can be offset at a 45-degree angle for Dynamount front sight. The compensator is CNC machined from 416 stainless steel and coated with a salt bath nitride finish for durability and long service life. The total weight of the compensator assembly is only 4.7 ounces with an overall length of just 1.69 inches, so it won't weight your firearm down or get in your way and is made in the USA.

Easy Installation

The Ultradyne Athena linear compensator easily screws into your barrel with a 1/2"-28 thread pitch and is Dynamount ready. In addition, the compensator comes with a cover sleeve and timing nut for easy indexing during installation.

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