Sons Of Liberty Gun Works NOX9 5.56 Muzzle Device - NOX9556

The Sons of Liberty Gun Works NOX9 5.56 muzzle device splits the difference between flash hider and compensator—giving you real flash suppression and measurable recoil control without forcing you to pick one or the other. Built for shooters who demand versatility, the NOX9 threads onto your 5.56/.223 barrel (1/2x28 pitch) and serves as a solid standalone muzzle brake while staying suppressor-ready. Its Key Mount pattern accepts Dead Air Armaments Sandman suppressors and compatible sound-reducing devices, so you can run it bare at the range or add quiet downrange without a swap.

The design centers on nine strategically placed gas ports—three each at the 3, 9, and 12 o'clock positions—a layout that works equally well for right and left-handed shooters. That geometry gives you meaningful muzzle climb reduction during rapid fire while the vented design helps keep flash signature low. Whether you're training, hunting, or running steel matches, you get a tool that handles the job without compromise.

Sons of Liberty Gun Works machines the NOX9 from 4140 steel and applies a QPQ nitride finish for durability and corrosion resistance in field conditions. It's made in the USA and built to last. If you're running a 5.56 platform and want flash control, recoil management, and suppressor compatibility all in one component, the NOX9 is worth a hard look.

Key Features

• Hybrid design: flash suppression and muzzle climb reduction in one device
• Nine gas ports (3, 9, and 12 o'clock positions) for ambidextrous performance
• Key Mount pattern compatible with Dead Air Armaments Sandman suppressors and similar threaded accessories
• 4140 steel construction with QPQ nitride finish for corrosion resistance
• American made

Specifications

Frequently Asked Questions

Will the NOX9 work with my Dead Air suppressor?

Yes. The NOX9 features a Key Mount pattern compatible with Dead Air Armaments Sandman suppressors and other Key Mount suppressor systems. You can thread suppressors and sound-reducing devices directly onto the muzzle device without additional adapters.

Does the NOX9 work for both right and left-handed shooters?

Yes. The nine gas ports are positioned at the 3, 9, and 12 o'clock positions, which distributes gas and recoil impulse in a way that serves both right and left-handed shooters equally.

What barrel thread pitch does this device require?

The NOX9 is threaded 1/2x28, the standard pitch for 5.56/.223 barrels. Verify your barrel has this pitch before purchase.

Is this muzzle device a flash hider or compensator?

The NOX9 is a hybrid: it provides both flash suppression and muzzle climb reduction in a single device. It's designed to give you the benefits of both without forcing a choice between them.