The Dead Air Xeno Adapter in the HUB (R-Series) configuration (Dead Air part no. DA455) is the silencer-side half of the Xeno mounting system. It carries a 1.375-24 thread socket, the industry-standard HUB size, so it works with the many silencers built around that interface. Xeno muzzle devices attach to it with left-hand threads, which is how Dead Air keeps the adapter from backing off the silencer when the muzzle device comes off. It is made from nitrided 4140 steel and is meant for precision-minded shooters who want a light mount with solid return to zero. The Xeno muzzle device is sold separately.

Key Specifications

• The adapter configuration is HUB (R-Series) with a 1.375-24 thread socket, which sets it apart from the P-Series and legacy pistol-socket Xeno adapters.
• The mating threads for Xeno muzzle devices are left-hand, so removing the muzzle device does not loosen the adapter from the silencer.
• Material is 4140 heat-treated steel, chosen for hardness in a mount that sees repeated installation.
• The finish is QPQ black nitride, which Dead Air says resists corrosion and will not gall or seize the way stainless steel can.
• Overall length is 1.241 inches, a short footprint that adds little length to the host firearm.
• Weight is 1.92 ounces, light enough that the Xeno system adds very little to the end of the rifle.
• Tool features accept a 1-1/8-inch socket and a 1.5-inch hook spanner, and they stay reachable with the suppressor installed.
• It pairs with Xeno muzzle devices, which are sold separately and thread to the adapter.
• Xeno muzzle devices sit shallow in the blast chamber, which Dead Air says limits baffle erosion and extends suppressor life.
• The mounting system is built for repeatable return to zero, the reason precision shooters pick the Xeno interface.

Frequently Asked Questions

What does this Xeno Adapter attach to? This HUB (R-Series) version uses the industry-standard 1-3/8-24 HUB thread, so it fits HUB-compatible silencers. Dead Air also makes Xeno adapters for the P-Series and legacy pistol sockets, which are separate part numbers.

Does it come with a Xeno muzzle device? No. The adapter is sold on its own, and the Xeno muzzle devices thread to it with left-hand threads.

Can I use Xemax parts with it? No. Dead Air states that Xeno and Xemax muzzle devices and adapters are not cross-compatible, so a Xeno adapter needs a Xeno muzzle device.

Buy the Dead Air Xeno Adapter, HUB (R-Series) 1.375-24 Socket

Pairing a Xeno adapter with the right muzzle device is what gives the system its repeatable lockup, and this one is the HUB-pattern piece for the silencer side. Order it from our Lubbock, Texas gun shop for fast direct shipping, and browse more Class 3 parts and accessories while you are here.