Sons of Liberty Gun Works NOX-SC 9MM/5.56MM Muzzle Brake – Single Chamber Micro KeyMicro – 1/2×28

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Versatile & Effective Single Chamber Muzzle Brake For 9mm/5.56 Builds

The Sons of Liberty Gun Works NOX-SC is a single chamber muzzle brake designed to provide excellent flash suppression as well as muzzle climb reduction and allow the quick installation of suppressors and accessories utilizing the Key Mount pattern.

It is compatible with both traditional Keymount (Key-Mo) and Micro Key-Mo suppressors from Dead Air Armament giving your Ghost, Wolf, or Wolfman a quick attach functionality similar to the proven traditional KeyMo system. It also works with all of Dead Air’s Sandman suppressors.

Compatible with 9mm Barrels & Ammunition

The NOX-SC is also compatible with 9mm barrels and ammunition and when pin/welded to a 14.7″ barrel, the NOX-SC meets OAL for 16″ barrels.

It is ideal for a short, lightweight single port muzzle brake suited for a variety of platforms with additional porting to control recoil.


  • Caliber:  9mm/5.56mm
  • 3 Ports to Control the Muzzle
  • Micro Key-Mo Compatible
  • Material: 4140 Steel
  • Finish: QPQ Finish
  • Thread Pitch: 1/2×28 TPI
  • Weight: 1 lb
  • Dimensions: 3 × 1 × 1 in

Have Questions About this Product?

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

SOLGW Warranty

We are happy to replace or refund your money for any defective firearms or parts, including ar15 barrels, bolt carrier group, lower parts kits, or any m4 accessories or rifles. We are dedicated to providing top-quality products to our customers, however, We do not offer refunds on ammunition.


Returns are ONLY accepted for merchandise found defective immediately upon receipt. Sons of Liberty Gun Works will provide YOUR CHOICE of a replacement item (pending availability) or full refund AND pay the return shipping cost on all firearms and accessories found defective upon receipt. For your added convenience, will also arrange for the defective items to be picked up and returned to us by the original shipper.

Contact Details:

  • Telephone: 210-852-2859
  • Email:

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.