Dead Air Xemax Deadair Da150 Xemax Muzzle Brake 5/8-24 .338lm

The Dead Air Xemax DA150 muzzle brake for .338 Lapua Magnum delivers serious recoil management and suppressor compatibility in a purpose-built package for long-range and big-bore rifle shooters. Built on Dead Air's Xeno Mounting Technology platform, the Xemax uses a self-aligning taper system that ensures consistent bore alignment and repeatability—critical when you're chasing precision at distance or running a suppressor. With a 5/8-24 thread pitch, this brake fits standard .338LM barrels and integrates seamlessly with Dead Air's suppressor ecosystem.

The single-port design vectors gas outward and upward when fired unsuppressed, which minimizes ground dust signature and reduces felt recoil without the excessive side blast of traditional multi-port brakes. If you run a suppressor, the Xemax architecture is optimized to work inside Dead Air's Nomax 33 silencer, delivering consistent performance and protecting suppressor internals from accelerated wear. Bolt-action precision rifles, modern magnum hunters, and long-range competitors all benefit from this approach—you get brake performance unsuppressed and suppressor longevity when you add a can. The brake ships with shims for timing alignment on your specific barrel.

At 3.40 ounces and just over 2 inches long, the Xemax stays relatively compact for a magnum brake. The 1.125-inch diameter is built solid enough to handle the pressures and recoil of .338 Lapua and other large-diameter magnums. If you already own a Dead Air Primal suppressor, you can add the Xemax adapter and brake to unlock the same benefits on your rifle. This is purpose-built gear for shooters who demand both standalone performance and suppressor compatibility.

Key Features

• Self-aligning taper system for consistent bore alignment and repeatability
• Single-port design minimizes ground dust signature and reduces recoil when unsuppressed
• Optimized for use inside Dead Air Nomax 33 suppressor
• Compatible with Dead Air Primal silencer via optional Xemax adapter
• Includes shims for timing alignment
• Built for .338 Lapua Magnum and large-diameter magnum calibers

Specifications

Frequently Asked Questions

Will the Xemax work with my Dead Air Primal suppressor?

Yes. If you own a Primal silencer, you can install the Xemax adapter on the suppressor and mount this Xemax brake on your rifle to unlock the same concentric design benefits and suppressor longevity optimizations.

Does this brake work without a suppressor?

Absolutely. The single-port design vectors gas upward and outward when fired unsuppressed, reducing felt recoil and minimizing ground dust signature compared to multi-port designs. You don't need a suppressor to benefit from the brake's performance.

What comes in the box?

The brake ships with shims to allow you to time the brake for proper alignment on your specific barrel.

Is the Xemax optimized for .338 Lapua specifically?

The Xemax system is designed for .33-caliber magnums including .338 Lapua Magnum, .338-378 Weatherby Magnum, .33XC, and 8.6 Blackout. It's also available in .45-caliber versions for cartridges like .45-70 and .450 Bushmaster.