Athena .223/5.56, .308/7.62

(2 customer reviews)


ATHENA allows a shooter to inexpensively upgrade their rifle to the Dynamount Sighting System. Muzzle rise has been optimized as well, with gas vented at an angle then forward. This sends a lower percent of sound back towards the shooter, optimizing sonic performance over recoil. Like all Ultradyne muzzle devices, a timing nut is included for easy installation. Rated for the following cartridges; .223 Rem | 5.56 x 45 and .308 Win | 7.62 x 51.

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ATHENA allows a shooter to easily upgrade their rifle to the Dynamount Sighting System.  Gases have been vented forward, which sends a lower percent of sound back towards the shooter.  Features include:

  • Vents Gases forward
  • Timing nut included for easy installation and indexing
  • Indexing slots compatable 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

Forward-directed signature for greater shooter comfort.

416 Stainless Steel with ultra-rugged salt bath nitride finish.

Barrel mounted sight option eliminates sight deflection associated with handguard mounting.

Athena .223 | 5.56 Technical Specs

  • CALIBER Rated for .223 Rem | 5.56 x 45
    • 416 Stainless Steel
    • Salt Bath Nitride Finish
  • MOUNTING Shrouded Timing Nut
  • MASS
    • Brake Only 109 grams | 3.8 ounces
    • Total 133 grams | 4.7 ounces
    • Length 43mm | 1.69 inches
    • OD 24.8 mm | 0.975 inches
  • WRENCH FLATS 7/8 inch

Athena .308 | 7.62 Technical Specs

  • CALIBER Rated for .308 Win| 7.62 x 51
    • 416 Stainless Steel
    • Salt Bath Nitride Finish
  • MOUNTING Shrouded Timing Nut
  • MASS
    • Brake Only 130 grams | 4.6 ounces
    • Total 158 grams | 5.56 ounces
    • Length 43mm | 1.70 inches
    • OD 27.9 mm | 1.10 inches
  • WRENCH FLATS 1 inch

Additional information

Weight .4 lbs
Dimensions 1.95 × 1.95 × 3.95 in

.223 Rem / 5.56 x 45, .308 Win / 7.62 x 51

2 reviews for Athena .223/5.56, .308/7.62

  1. Buck

    Very pleased with this linear compensator. We have put many rounds through this and is easily as proficient at protecting shooters to your sides as any of the the competitors products. At nearly half the price of other devices and performance being the same, it is a great choice. Also, with some of the handguards being used on SBR or CQB set ups, this will fit easily inside of a smaller diameter guard.

  2. Redneck

    I can’t say enough good things about this muzzle device. My pistol upper started with an A2 style flash hider, everyone hated to be near me when shooting. The percussion off my shots were intense to say the least, I installed the athena. And it tamed the beast.
    As a closing I’d recommend this to anyone who needs an option for short barreled applications. It does the job of changing the blast so you don’t feel it on your face. People won’t complain about getting hit by the shock off your firearm.
    And lastly one of my favorite things is in the fall when the leaves are on the ground. Is going out shooting and watching them flee from the blast of my shots.

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