Dead Air Xemax Muzzle Brake | .338 Cal | 3/4-24 | DA151

The Dead Air Xemax Muzzle Brake (DA151) is a heavy-duty muzzle device designed for .338-class big-bore rifles and to interface with Dead Air Xemax/ Nomaxx mounting systems. It uses Dead Air’s Xeno mounting technology, a self-aligning taper system intended to maintain concentricity and repeatable bore alignment. The single-port brake vents gas outward and upward to reduce dust signature and moderate felt recoil while providing a robust mounting surface for compatible silencers when used with the appropriate adapter.

Product Specifications

• The manufacturer is Dead Air Armament LLC (Dead Air Silencers).
• The model is XEMAX.
• The manufacturer’s part number is DA151.
• The thread pattern is 3/4-24 to fit compatible barrels and adapters.
• The listed caliber is .338 Caliber.
• The product type is Muzzle Brake.
• The finish is Nitride for surface wear resistance.
• The color is Black.
• The material is Alloy Steel.
• The brake uses a single-port design that vectors gas outward and upward to minimize ground dust dispersion.
• The device requires timing and includes the appropriate shims for proper alignment on installation.
• It is optimized for use on .33-caliber (including 33 XC, .338 Lapua Mag, 8.6 Blackout) bolt-action rifles and selected .45-caliber cartridges (.45-70, .450 Bushmaster).
• The Xemax system is designed to pair with the Nomaxx 33 Silencer and can be used with Primal silencers via the Xemax adapter to help preserve suppressor life.
• The UPC is 810128161367.

Robustly built for large-caliber applications, the Xemax brake is aimed at shooters who require strong, repeatable alignment between muzzle device and suppressor and who want a durable brake design for heavy-recoil rifles. Its construction and mounting interface make it practical for long-range precision bolt-action use and for any suppressed big-bore shooting where minimizing dust and preserving the suppressor are priorities. The included timing shims allow proper indexing at installation and the nitride finish contributes to corrosion resistance and longevity.