Description
Quick-detach systems are handy, but they can add a lot of steel to the end of an ultralight can. The Dead Air Xeno Xero takes the opposite approach. At just 1.8 ounces and 1.105 inches long, this 1/2-28 taper mount gives you fast, repeatable suppressor attachment while barely adding anything to your setup. The large taper and left-hand device threads lock things up consistently shot after shot, so your zero stays put every time you pull the can off and put it back on.
Why the Xeno Xero Punches Above Its Size
The short profile is not just about saving weight. Because the mount barely enters the blast chamber, your suppressor keeps more of its internal volume working for you, which translates to better sound performance compared to longer mounts that eat up space inside the can. The 9mm through bore makes this version a natural fit for 9mm hosts like PCCs and subguns, and the trim dimensions also work nicely on bolt guns with slim barrel contours where 1/2-28 threads are the norm. Built-in 3/4 inch wrench flats mean installation and removal are simple with tools you already have in the range bag.
Built Like a Dead Air Mount Should Be
Dead Air machines the Xeno Xero from 4140 heat-treated alloy steel and coats it in black nitride, so it handles heat, carbon, and weather without complaint. The 0.99 inch outside diameter keeps everything low profile on the muzzle when you are running the gun bare.
Pairing the Xeno Xero Mount With Your Suppressor
This mount works with all Dead Air Xeno adapters, which covers the Sierra 5 out of the box and cans like the Nomad series, Primal, Wolfman, and Ghost 45 with the appropriate Xeno or Xeno P-Series adapter. HUB-compatible suppressors from other makers can join the party with a Xeno adapter as well. Just remember the adapter is sold separately, so make sure your can is set up for the Xeno system before you order.
Key Specifications
- Manufacturer: Dead Air Silencers
- Manufacturer Part Number: DA127
- UPC: 810128160681
- Model: Xeno Xero
- Product Type: Threaded Taper Mount Muzzle Device
- Thread Pattern: 1/2"-28
- Through Bore: 9mm
- Material: 4140 HT Alloy Steel
- Finish: Black Nitride
- Length: 1.105"
- Outside Diameter: 0.99"
- Weight: 1.8 oz
- Tool Features: 3/4" Wrench Flats
- Compatibility: Dead Air Xeno Adapters
- Color: Black
What’s Included
- Dead Air Xeno Xero 1/2-28 taper mount muzzle device
Frequently Asked Questions
Which suppressors work with the Xeno Xero mount?
The Xeno Xero works with any suppressor running a Dead Air Xeno adapter. That includes the Sierra 5, the Nomad series and Primal with a Xeno adapter, and the Wolfman and Ghost 45 with a Xeno P-Series adapter. HUB-compatible cans from other brands can use it too once fitted with a Xeno adapter, which is sold separately.
What calibers can I shoot through the 1/2-28 Xeno Xero?
This version has a 9mm through bore, so it handles 9mm and smaller diameter projectiles. That covers common 1/2-28 hosts like 9mm carbines and .22 caliber rifles. If you need to run .45 caliber projectiles, look at the other Xeno Xero thread patterns with the larger .458 bore.
How is the Xeno Xero different from Dead Air's KeyMo mounts?
The Xeno Xero trades the quick-detach mechanism for a simple taper mount design, which cuts a lot of weight and length off the muzzle. At 1.8 ounces and about 1.1 inches long, it stays mostly out of the blast chamber, so your suppressor sounds better and your host stays lighter. You give up tool-free removal, but the built-in 3/4 inch wrench flats make swaps quick.
Does the Xeno Xero hold zero when I remove and reattach my suppressor?
Yes, repeatability is the whole point of this design. The large taper and left-hand threads seat the suppressor the same way every time, giving you a reliable return to zero between removals. That consistency is why the Xeno system has become a favorite for precision setups as well as hard-use guns.







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