Dead Air Key Mnt Muzzle Brake 3/4x24

The Dead Air KeyMount muzzle brake 3/4x24 gives you a solid foundation whether you're ready to run a suppressor now or keeping your options open. Built on Dead Air's proven KeyMo platform, this brake threads onto .338-caliber rifles and serves double duty: deliver recoil reduction and concussion control on its own, or snap into place as the quick-attach interface for Sandman Series suppressors and other KeyMo-equipped cans. The sealed taper design means your suppressor won't carbon-lock to the mount, so you can remove it without fighting stuck parts—a genuine quality-of-life feature that separates this from cheaper alternatives.

Machined from 4140 heat-treated steel and finished in black nitride, the KeyMount is built tough for field use. At 2.82 inches long and under 4.2 ounces, it won't throw off your rifle's balance or add unnecessary bulk to your profile. Unlike some muzzle devices that sound and feel like a mechanical jackhammer, this brake reduces concussion and keeps shots reasonably manageable—important if you're hunting with a spotter or shooting where muzzle blast matters to those around you.

This is the 3/4x24 thread version, purpose-built for larger-caliber rifles in .338. If you're shopping for a muzzle brake that's genuinely useful standalone and gives you a legitimate path to suppressor integration down the road, Dead Air's KeyMount platform is where a lot of serious rifle owners land. No pin-and-weld provisions on this model—it's direct-thread only.

Key Features

• Quick-attach KeyMo interface for Sandman and KeyMo-compatible suppressors
• Sealed taper design prevents carbon-locking; suppressors remove cleanly
• Effective recoil and concussion reduction without suppressor
• 4140 steel, black nitride finish—durable field-ready construction
• Lightweight at 4.10 oz with compact 2.82" profile

Specifications

Frequently Asked Questions

Is the Dead Air KeyMount compatible with suppressor mounts other than KeyMo?

No. This is a KeyMo-specific platform. It's designed to work with Sandman Series suppressors and other suppressors with KeyMo attachment systems. If you own or plan to own a KeyMo suppressor, this brake integrates seamlessly. If you have a different quick-attach system, you'll need the appropriate brake for that platform.

Can I pin and weld this muzzle brake?

This 3/4x24 version does not come with a pre-drilled hole for pin and weld. Direct threading to your barrel is the intended installation method.

What rifles does the 3/4x24 thread fit?

The 3/4x24 thread is common on larger-caliber rifles, particularly in .338 and similar magnum cartridges. Verify your rifle's barrel thread size before purchase—using the wrong thread size will not allow proper installation.

Does this brake need cleaning or maintenance when running a suppressor?

Like any muzzle device, carbon and fouling can accumulate. The sealed taper design is engineered to release suppressors cleanly without sticking, even under heavy use, which sets it apart and makes suppressor removal straightforward.