Dead Air KeyMo Muzzle Brake | 11/16×24 | DA163

The Dead Air KeyMo Muzzle Brake DA163 is a threaded muzzle device designed for 11/16×24 barrels and KeyMo quick-attach silencers. Constructed from heat-treated 4140 chromium-molybdenum steel with a black nitride finish, it provides a durable mounting interface and engineered gas distribution for use with Dead Air KeyMo-equipped silencers. The design addresses common mounting issues by minimizing the need for shims and reducing the risk of carbon lock during suppressor removal.

Product Specifications

• The model is KeyMo Muzzle Brake (DA163).
• The thread pattern is 11/16×24.
• The material is 4140 HT chromium-molybdenum heat-treated steel.
• The finish is Black nitride.
• The color is Black.
• The overall length is 2.58 inches.
• The device is designed to be compatible with KeyMo-equipped silencers.
• The muzzle brake ports are designed to efficiently distribute gas and pressure inside a Dead Air silencer for performance and longevity.
• The design eliminates the need for shims and helps prevent carbon locking to allow easier suppressor removal.
• The part number is DA163.
• The UPC is 810128161572.

Well-suited for shooters who use KeyMo-compatible suppressors, this mount-style muzzle brake provides a robust, repeatable interface while managing gas flow to support suppressor service life. Typical applications include suppressed precision shooting and field use where a quick-detach, rock-solid mount is required.