The Dead Air KeyMicro Muzzle Brake (brand part number DA109) is a 9mm muzzle device threading onto a 1/2×28 pistol-caliber barrel, built for Dead Air’s compact KeyMicro suppressor mounting system. Run bare, it works as a standard brake to cut recoil and muzzle rise on a 9mm host; it also doubles as the mounting interface for KeyMicro-compatible Dead Air suppressors, letting a 9mm PCC or pistol-caliber host run the same thread standard bare or suppressed.

Key Specifications

• Chambered for 9mm hosts.
• Threads to a 1/2×28 pattern.
• Classified as an Accessory-Muzzle Brake for reducing recoil and muzzle rise.
• Built to Dead Air’s compact KeyMicro mounting system for compatible suppressor use.

Frequently Asked Questions

What thread pattern does this brake use? It threads to a 1/2×28 pattern.

What caliber is this built for? It’s built for 9mm hosts.

Does this work without a suppressor attached? Yes, run bare it functions as a standard muzzle brake, and it also mounts a KeyMicro-compatible Dead Air suppressor.

Buy the Dead Air KeyMicro Muzzle Brake, 1/2×28, 9mm

Standardize your 9mm host to Dead Air’s compact KeyMicro platform. Order this Dead Air muzzle brake, part of our full Class 3 parts & accessories selection, from our Lubbock, Texas gun shop for fast, direct shipping.