The Dead Air Xeno Omni Brake in M14-1RH (Dead Air part no. DA139) is the metric-thread version of Dead Air’s omni-directional muzzle brake, rated for .30 caliber. It is part of the Xeno Mounting System, so it runs on its own as a brake or as the mount for a suppressor with a Xeno Adapter. Dead Air machines it from heat-treated 4140 alloy steel with a black nitride finish. The Xeno design is built around a large taper, left-hand adapter threads and accessible tool features, aimed at repeatable return to zero.

Key Specifications

• The muzzle thread is M14-1RH, so this version fits barrels cut to that pitch and nothing else.
• The through bore is rated .30 caliber by Dead Air, which sizes the brake for .30-caliber and smaller bullets.
• The body is 4140 heat-treated alloy steel, a hard steel that stands up to the blast of a brake.
• The finish is black nitride, which adds hardness and corrosion resistance to the steel.
• The design is an omni-directional brake that works as a stand-alone muzzle device with no suppressor attached.
• It pairs with Xeno Adapter-equipped suppressors, giving a lightweight mount with repeatable return to zero.
• The brake and the Xeno Adapter mate with left-hand threads, so the adapter will not unthread from the suppressor when you remove it.
• Its short length and lock-up position keep it out of the deep part of the blast chamber, which limits erosion on the baffles.
• Large tooling surfaces stay reachable with the suppressor installed, which helps when a mount needs extra torque.

Frequently Asked Questions

Which barrels does this version fit? It fits muzzles threaded M14-1RH. Dead Air lists the Xeno Omni Brake as separate part numbers for 1/2-28, 5/8-24 and M14-1RH, so match the thread to your barrel before ordering.

Can I run it without a suppressor? Yes. Dead Air states that the Xeno Omni Brake works superbly as a stand-alone muzzle brake, and it also serves as the mount when you add a Xeno Adapter-equipped suppressor.

Which suppressors does it mount? Any Dead Air suppressor fitted with a Xeno Adapter. Dead Air shows it with the Nomad series, Primal, Sierra 5, Sandman X, Lazarus 6 and CT5P, plus the Wolfman with the Xeno P-Series adapter and the Wolverine with the HUB adapter.

Buy the Dead Air Xeno Omni Brake, M14-1RH, .30 Caliber

If your rifle wears an M14-1RH muzzle thread and you want a Dead Air Xeno mount, this is the part that matches it. See the rest of our Class 3 parts and accessories, then order from our Lubbock, Texas shop for fast, insured shipping.