Dead Air KeyMicro Brake | 9mm | 5/8×24 | DA111

The Dead Air KeyMicro Brake (MFG# DA111) is a compact, single-port muzzle brake built for a 9mm bore and finished in black. It is designed to function as a minimal standalone brake and as part of Dead Air’s KeyMicro/KeyMo mounting systems, providing a low-profile interface for compatible adapters. Construction details in source data list alloy steel materials and a corrosion-resistant black finish.

Typical applications include use on lightweight 9mm pistols or carbines where a compact, low-mass muzzle device is desired, and as a mounting interface for suppressor adapters on compatible Dead Air silencers.

Product Specifications

• The manufacturer is Dead Air Silencers (Dead Air Armament LLC).
• The model is listed as KeyMicro Brake.
• The manufacturer part number is DA111.
• The bore/caliber is specified as a 9mm bore.
• The thread pattern is 5/8×24.
• The finish is specified as Black.
• The material is listed as Alloy steel.
• The product type is Muzzle Brake.
• The device is compatible with Dead Air KeyMicro and KeyMo adapters.
• The listed weight is 0.15 (unit not specified in source data).
• The listed package dimensions are 1.85 x 1.75 x 3.85.
• The listed threads value is 5/8-24.
• The subcategory is Muzzle Devices.
• The UPC is 810128160544.

The KeyMicro Brake is a minimalist, lightweight muzzle device that serves both as a standalone brake and as an interface for Dead Air’s adapter systems. Its compact profile suits rigs where low mass and small footprint are priorities while retaining compatibility with a range of Dead Air silencers.

Users commonly praise the KeyMicro Brake for its compact, lightweight design and straightforward compatibility with Dead Air’s KeyMicro/KeyMo mounting systems.