Dead Air Armament Da122 Xeno Fh 5/8X24
The Dead Air Armament Xeno Flash Hider in 5/8×24 is a compact muzzle device designed for shooters who demand precision repeatability without sacrificing durability. Built from nitrided 4140 steel, this flash hider serves as an effective standalone muzzle brake while delivering its real potential when paired with a Dead Air suppressor equipped with the Xeno Adapter system. The 5/8×24 thread pitch covers a wide range of modern rifle platforms, making it a versatile choice for hunters, long-range shooters, and tactical users.
What sets the Xeno system apart is its engineering philosophy: shorter overall length and a unique mounting geometry that minimizes contact pressure within a suppressor's blast chamber. This design choice reduces erosion on suppressor baffles, extending suppressor lifespan while maintaining sound performance—a real benefit if you're running your can for hundreds or thousands of rounds between cleanings. The flash hider won't sit deep in the chamber, which also future-proofs your setup for suppressors with more compact internal geometry that other manufacturers are moving toward.
The Xeno Flash Hider features generous tooling surfaces accessible even with a suppressor fully installed, so if you need to apply extra torque down the line, you've got the leverage. Nitrided 4140 steel won't gall your threads the way uncoated stainless can, and carbon and copper fouling wipe away cleanly without risk to thread integrity. The flash hider pairs with the 1-3/8-24 industry-standard Xeno Adapter (sold separately), which uses left-handed threads to lock into compatible suppressors—a safety feature that prevents accidental unthreading during removal and lets you verify tight lockup every time you install it on your rifle.
If you're building a precision rifle or upgrading an existing shooter for suppressed use, the Xeno Flash Hider delivers the lightweight, repeatable mounting platform serious shooters depend on without the bulk or weight penalty.
Key Features
- 5/8×24 thread pitch for broad platform compatibility
- Nitrided 4140 steel construction resists corrosion and thread galling
- Compact profile minimizes erosion inside suppressor blast chambers
- Accessible tooling surfaces even with suppressor installed
- Works as standalone flash hider or Xeno Adapter mounting base
- Repeatable return to zero for precision-focused shooters
Specifications
| Brand | Dead Air Armament |
| Model | DA122 Xeno Flash Hider |
| Thread Pitch | 5/8×24 |
| Material | Nitrided 4140 Steel |
| Adapter Thread Standard | 1-3/8-24 (Xeno Adapter compatible) |
Frequently Asked Questions
Will the Xeno Flash Hider work with suppressors from other manufacturers?
The Dead Air Xeno Flash Hider itself is a standalone muzzle device. To use it as a suppressor mounting platform, you'll need a suppressor equipped with the Xeno Adapter (sold separately). The Xeno Adapter uses the industry-standard 1-3/8-24 thread, making it compatible with Dead Air Nomad series suppressors and many other silencers on the market.
What's the difference between the Xeno system and other flash hiders?
The Xeno system is engineered with a shorter overall length and shallow insertion depth into a suppressor's blast chamber. This design reduces focused erosion on suppressor baffles, prolonging suppressor life and maintaining sound performance. The nitrided 4140 steel resists thread galling and cleans more easily than uncoated alternatives, and the generous tooling surfaces remain accessible even when a suppressor is fully installed.
Do I need to buy anything else to use the Xeno Flash Hider?
The Xeno Flash Hider works as a standalone flash hider immediately upon installation. If you want to use it as a suppressor mounting point, you'll need to purchase a suppressor with a compatible Xeno Adapter, sold separately.
Is the Xeno Flash Hider suitable for precision long-range hunting?
Yes. The Xeno system is designed with repeatability and zero stability in mind. The short profile and rigid mounting geometry make it a good choice for hunters and precision shooters who need consistent performance from their rifles.

