The Dead Air Xeno A1 Flash Hider DA121 is a lightweight, dual-purpose muzzle device designed to reduce visible muzzle flash while serving as the mounting interface for the Dead Air Xeno suppressor system. This version uses 1/2x28 host threads and features a .30 caliber bore, giving it useful compatibility across many 1/2x28 threaded rifle platforms where bore clearance is appropriate.
The Xeno system is designed around a left-hand threaded taper interface that promotes repeatable lockup and helps prevent the adapter from loosening from the suppressor during removal. When paired with a compatible Dead Air Xeno Adapter, the DA121 provides a compact and durable suppressor mounting solution with excellent return-to-zero characteristics.
The A1-style flash hider profile gives shooters a familiar, low-profile muzzle device that works well on carbines, precision rifles, and suppressor hosts. Dead Air's shorter Xeno lock-up design helps keep the flash hider from sitting deep inside the suppressor blast chamber, reducing focused erosion while supporting long suppressor service life.
Machined from 4140 heat-treated steel and finished in QPQ black nitride, the DA121 is built for durability, corrosion resistance, and repeated suppressor installation. The 3/4" wrench flats provide accessible tooling surfaces even when the suppressor system has seen heavy use.
Note: Xeno Adapter sold separately.
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