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Ultradyne USA Mercury Muzzle Brake - 1/2x28 Thread for 5.56/.223 - AT3 Tactical

Ultradyne USA Mercury Muzzle Brake – 1/2×28 Thread for 5.56/.223

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90 Day No-Hassle Returns We Pay Return Shipping

We have a 90-day no-hassle return policy. We pay return shipping.

If you need to request a return, contact us at support@at3tactical.com and we will send you a return label

After 90 days, defective items will still be covered under the manufacturer’s warranty, where applicable.

Please refer to the product listing for warranty details. If you have specific warranty questions, contact us at support@at3tactical.com. We may direct you to pursue your warranty claim directly with the manufacturer.

Your satisfaction is our #1 priority

If you’re dissatisfied with your purchase, in any way, please contact us at support@at3tactical.com – we will do our best to make it right.

Fast & Free Shipping On orders over $50

You will receive fast, free shipping for all orders over $50

Shipping cost is $7.99 for orders under $50. We ship with UPS or USPS, depending on the item.

Most orders received by 1pm CST ship the same day

You will receive an email with tracking information at the time of shipment. To expedite shipping, we may ship your order from multiple warehouses. Orders placed on weekends, holidays, or after 1pm will ship the following business day.

Aggressive and Effective –  Muzzle Brake for .223 | 5.56 AR15

MERCURY has been meticulously engineered for the .223 | 5.56 caliber to provide superior recoil reduction and neutralize muzzle rise with a smooth, balanced release of blast energy. Progressive 90º side ports vent combusting gases at intervals that spread out the recoil impulse for efficient, accurate follow-up shots. Like all Ultradyne muzzle devices, a timing nut is included for easy installation.

MERCURY is the choice for those seeking a compact, lightweight muzzle device with smooth recoil characteristics.   A timing nut is included for easy installation.

PROGRESSIVE 90 DEGREE PORTS
Ultrasmooth recoil reduction and minimal shooter distraction.

100% CNC MACHINED IN THE USA
416 Stainless Steel with ultra-rugged salt bath nitride finish.

Mercury 223 | 5.56 Technical Specs

  • CALIBER .223 | 5.56 or smaller
  • BARREL THREAD 1/2-28 UNEF-2B
  • MATERIAL
    • 416 Stainless Steel
    • Salt Bath Nitride Finish
  • MOUNTING Shrouded Timing Nut
  • MASS
    • Brake Only 87 grams | 3.1 ounces
    • Total 110 grams | 3.9 ounces
  • DIMENSIONS
    • Length 62 mm | 2.43 inches
    • OD 22 mm | 0.865 inches
  • WRENCH FLATS 3/4 inch

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