Dead Air KeyMo Muzzle Brake | .578-28 | DA160

The Dead Air KeyMo Muzzle Brake (DA160) is a quick-detach KeyMo mount and muzzle device designed for big-bore rifles and suppressor-equipped systems. It provides efficient gas distribution into KeyMo-compatible silencers and is offered with a black nitride finish. The mount is engineered to reduce the risk of carbon lock and to accept Dead Air KeyMo adapter-equipped silencers without shims on many barrels.

Typical applications include precision or long-range shooting with large-bore rifles and field use where rapid attach/detach of a suppressor is desired. It is also used in range and testing setups when frequent suppressor changes are required.

Product Specifications

• The model is KeyMo by Dead Air.
• The manufacturer’s part number is DA160.
• The thread pattern is .578-28.
• The finish is Black Nitride.
• The material is specified in manufacturer text as 4140HT chromium-molybdenum heat-treated steel.
• The overall length is 2.58 inches.
• The device is described as compatible with calibers up to .458.
• The brake ports are designed to distribute gas and pressure inside KeyMo silencers for improved service life, as stated by the manufacturer, and this design aids in reducing carbon lock on the mount.
• The product color is listed as Black.
• The product type is listed as Muzzle Brake.
• Compatibility is listed as KeyMo adapter-equipped silencers from Dead Air.
• The package length is listed as 5.7.
• The package width is listed as 4.4.
• The package height is listed as 1.2.
• The UPC is 810128161541.

The KeyMo mount design simplifies mounting and removal of KeyMo-equipped silencers while maintaining a robust mechanical interface suitable for large-bore applications. Its combination of a durable, heat-treated steel body and nitride finish offers corrosion resistance and service life appropriate for range work and field use. If you need a rock-solid quick-detach muzzle device for suppressor integration or frequent service changes, the KeyMo DA160 provides a purpose-built solution.

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