The Dead Air KeyMo muzzle brake provides a durable, KeyMo-compatible mounting option for .338-caliber rifles with 3/4×24 threads. Constructed from heat-treated 4140 alloy steel and finished in black nitride, it is sized to interface with Dead Air KeyMo mounts including Sandman-series suppressors. The brake is designed to deliver more manageable recoil and reduced concussion compared with many traditional brakes while allowing quick removal and reattachment of compatible suppressors.
Key Specifications
- Thread pattern accepts 3/4"x24 threads for direct mounting.
- Threads are specified as 3/4-24.
- Constructed from 4140 HT alloy steel for strength and durability.
- Finish is Black Nitride for corrosion resistance and wear protection.
- Color is Black.
- Model designation is KeyMo.
- Product type is a muzzle brake.
- Fitment is listed as Dead Air Key Brake or Flash Hider.
- Caliber compatibility is listed as .338 caliber.
- Compatible with Dead Air Sandman series and KeyMo-equipped suppressors for fast attachment and removal.
Engineered for durability and practical use, the KeyMo muzzle brake gives .338 shooters a robust mounting option that simplifies suppressor attachment without sacrificing build quality. Its heat-treated 4140 construction and black nitride finish stand up to regular use, while the KeyMo interface keeps suppressor changes fast and reliable. For users prioritizing a rugged, purpose-built muzzle device that integrates with Dead Air’s KeyMo system, this brake is a straightforward, well-engineered choice.





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