Dead Air XEMAX Muzzle Brake | .338 Cal | M18x1.5

The Dead Air XEMAX is a purpose-built muzzle brake for .338-caliber rifles using an M18x1.5 thread interface. It uses Dead Air’s Xeno Mounting Technology with a self-aligning taper system to promote concentricity and repeatable alignment when installed. The single-port brake geometry vectors gas outward and upward to limit dust signature and reduce felt recoil, and it is designed to work as a standalone brake or as part of the XEMAX/Nomax system when paired with compatible large-bore suppressors.

Product Specifications

• The manufacturer is Dead Air Armament LLC.
• The model is XEMAX.
• This item is a muzzle brake intended for use on compatible rifles.
• This brake is specified for .338 caliber rifles.
• The external thread pattern is M18x1.5.
• The NFA thread designation is 18×1.5mm RH.
• The finish is nitride for corrosion resistance and consistent appearance.
• The construction material is alloy steel.
• The color is black.
• The listed weight is 3.40 ounces.
• The overall diameter is listed as 1.125 inches.
• This design uses a self-aligning taper (Xeno Mounting Technology) to promote consistent bore alignment when installed.
• The brake is optimized for pairing with large-bore suppressors such as the Nomax 33 or Dead Air Primal for improved suppressor performance and service life.
• The product type classification is muzzle device — brake.
• The UPC is 810128161398.

Engineered for shooters who run large-bore rifles, the XEMAX provides a robust mounting interface and service-oriented design that supports both standalone brake use and integration into Dead Air’s large-caliber suppressor systems. Its concentric taper and included shims allow for timing and alignment during installation, making it a practical option for precision long-range applications and suppressor-coupled big-bore shooting scenarios.