The Dead Air Xeno Adapter for SilencerCo legacy mounts (brand part no. DA458) brings the Xeno mounting system to suppressors built around SilencerCo’s legacy mounting interface, pairing with Xeno muzzle devices for repeatable lock-up and solid return to zero. Dead Air Silencers positions the Xeno lock-up so the muzzle device does not sit deep in the blast chamber, minimizing focused baffle erosion while preserving sound performance. Left-hand threads keep the adapter from unthreading with the muzzle device during removal, and ample tooling surfaces stay accessible even with the suppressor installed. Among Class 3 parts and accessories, this adapter favors shooters crossing Xeno muzzle devices over to a SilencerCo legacy-mount can.

Key Specifications

• Fits suppressors using SilencerCo legacy mounting interfaces.
• Machined from nitrided 4140 steel for hardness, corrosion resistance, and gall-free threads.
• Left-hand attachment threads prevent the adapter from unthreading with the muzzle device.
• The short lock-up keeps Xeno devices out of the blast chamber, reducing baffle erosion.
• Tooling surfaces remain accessible with the suppressor fully installed.
• Xeno muzzle devices are sold separately.

Frequently Asked Questions

Is this adapter an NFA item? No, this is a mounting accessory. It requires no ATF paperwork itself — only the suppressor it attaches to is the registered NFA item.

Does it include a muzzle device? No, Xeno muzzle devices are sold separately — the adapter is the suppressor-side half of the system.

Buy the Dead Air Xeno Adapter

Xeno-system mounting on a SilencerCo legacy-mount suppressor is exactly what this adapter delivers. Order it from our Lubbock, Texas gun shop for fast shipping.