Dead Air KeyMo Muzzle Brake | 5/8-24 | DA161

The Dead Air KeyMo muzzle brake (MFG# DA161) is a quick-detach muzzle device engineered to interface with Dead Air KeyMo-equipped silencers. It provides efficient muzzle braking and a KeyMo mount that eliminates the need for shims on many rifle barrels. The brake’s ports are shaped to direct gas into the suppressor for consistent performance and to help reduce the chance of carbon locking. Constructed of heat-treated steel with a corrosion-resistant nitride finish, the KeyMo brake is built for repeated use in the field and on the range.

Applications: quick, rock-solid suppressor attachment for big-bore rifles; recoil mitigation and muzzle-control for precision or competition shooting.

Product Specifications

• The model is KeyMo.
• The manufacturer part number is DA161.
• The thread pattern is 5/8-24.
• The finish is Black Nitride.
• The material is 4140HT chromium-molybdenum heat-treated steel.
• The overall length measures 2.58 inches.
• The device is compatible with Dead Air KeyMo adapter-equipped silencers.
• The mount design removes the need for shims for muzzle seating.
• The brake’s ports are designed to efficiently distribute gas and pressure inside the silencer.
• The design minimizes the risk of carbon lock when removing the suppressor.
• The product color is listed as Black.
• The product type is Muzzle Brake.
• The NFA thread pattern is 5/8×24.
• The UPC is 810128162531.

Whether preparing a big-bore rifle for suppressed use or reducing recoil and muzzle rise at the range, the KeyMo brake delivers a straightforward, durable mounting solution and effective gas management. Its KeyMo interface and robust construction make it suitable for repeated attachment and removal while maintaining consistent alignment and performance.