Dead Air DA457 Xeno Adapter P-Series 4140 HT Alloy Steel Black Nitride

The Dead Air DA457 Xeno Adapter is a precision mounting interface designed for shooters who demand repeatability without adding weight or length to their rifle. This P-series adapter bridges a Xeno muzzle device to industry-standard 1-3/8-24 (HUB) threaded suppressors, making it a versatile choice for builders and precision rifle owners working with multiple silencer options. Built from nitrided 4140 steel, the DA457 resists corrosion and thread galling—a real-world advantage when you're running suppressed for extended strings without disassembly.

The Xeno system's design philosophy centers on a shorter footprint and shallow muzzle device seating that minimizes baffle erosion, potentially extending suppressor service life while maintaining sound performance. Unlike deeper-seated mounting systems, the Xeno's positioning reduces focused heat and carbon buildup on internal baffles. The left-hand threaded connection between adapter and muzzle device prevents unintended loosening during removal, and you can verify torque integrity during installation—a handy feature for suppressed rifles that stay mounted through hundreds of rounds.

Tooling accessibility is built in throughout the adapter, with 1-1/8" socket and 1.5" hook spanner compatible surfaces. This means you can torque the mount even with a suppressor fully installed, critical for shooters who don't frequently strip their suppressors for cleaning. The nitrided 4140 finish also makes carbon and copper fouling easier to clean without risk of thread damage—a practical benefit when you're maintaining a suppressed precision rig.

Key Features

• Lightweight at 1.60 oz with compact 1.125" overall length
• Nitrided 4140 steel resists corrosion and thread galling
• Left-hand threaded muzzle device interface prevents loosening during removal
• Shallow seating minimizes baffle erosion for extended suppressor life
• Compatible with most industry-standard 1-3/8-24 threaded suppressors
• Tool-accessible surfaces for torque verification with suppressor installed
• 1-1/8" socket and 1.5" hook spanner compatible for field maintenance

Specifications

Frequently Asked Questions

What suppressors are compatible with the DA457 Xeno Adapter?

The DA457 uses industry-standard 1-3/8-24 (HUB) threads, making it compatible with a wide range of suppressor models across the market that feature this common thread pattern. Confirm your suppressor's thread specs before purchase.

Can I adjust torque on the mount while my suppressor is attached?

Yes. The adapter's tool-accessible surfaces—compatible with 1-1/8" socket and 1.5" hook spanner—remain accessible even with a fully installed suppressor, allowing you to verify or adjust torque without removal.

Why does the DA457 use left-hand threads on the muzzle device side?

Left-hand threading on the muzzle device interface prevents the adapter from unthreading from your suppressor during removal. It also lets you confirm the mount is still tight when you reinstall it on your firearm.

How does the Xeno mounting system affect suppressor life?

The Xeno's shallow seating of the muzzle device minimizes focused erosion on the suppressor's baffles compared to deeper-seated systems, potentially extending suppressor lifespan while maintaining sound performance.