The Dead Air Xeno Flash Hider in 1/2×28 (Dead Air part no. DA121) is a .30 caliber muzzle device that works on its own and serves as the host side of Dead Air’s Xeno mounting system. Paired with a Xeno Adapter, which is sold separately, it gives a suppressor a lightweight mount with repeatable return to zero. The flash hider and adapter mate with left-hand threads, so the adapter does not unthread from the suppressor when you remove it. It is 4140 steel with a QPQ black nitride coating and measures 2.16 inches long. Its short length keeps it out of the deep part of the blast chamber, which Dead Air says limits baffle erosion.

Key Specifications

• The muzzle thread is 1/2×28, the pitch of this version of the Xeno Flash Hider.
• The bore diameter is .30 caliber, the bore size Dead Air lists for this 1/2×28 version.
• Overall length is 2.16 inches, short enough to stay out of the blast chamber.
• The outside diameter is 0.99 inch, a slim profile on the muzzle.
• The material is 4140 HT steel, which Dead Air chose for hardness and corrosion resistance.
• The finish is QPQ black nitride, a coating that Dead Air says will not gall your threads.
• It has a 3/4-inch wrench feature, a tooling surface for removing and torquing it.
• It mates with the Xeno Adapter through left-hand threads, which keep the adapter from unthreading when removed.
• It works as a stand-alone muzzle device, without a suppressor attached.
• The adapter side uses the industry-standard 1-3/8-24 thread, which Dead Air notes fits many silencers beyond its own.

Frequently Asked Questions

Do I need a Xeno Adapter to use it? No. Dead Air says the Xeno Flash Hider works superbly as a stand-alone muzzle device. The Xeno Adapter, sold separately, is what lets a suppressor mount to it.

What thread and bore does this version have? It is threaded 1/2×28 with a .30 caliber bore. Dead Air also offers the Xeno Flash Hider in 5/8-24, so match the pitch to your muzzle.

What tool fits the flash hider? It has a 3/4-inch wrench feature, and Dead Air notes the tool features stay accessible even with the suppressor installed.

Buy the Dead Air Xeno Flash Hider, 1/2×28, .30 Caliber

The Xeno system pairs a short flash hider with a repeatable mount, and the 1/2×28 version is the one for a .30 caliber host with that thread. Order it from our Lubbock, Texas gun shop for fast, insured shipping, and see more suppressor parts and accessories.