Requires a compatible Dead Air KeyMo, KeyMicro, or KeyMo Zero muzzle device for quick-detach suppressor attachment.

The Dead Air DA428 KeyMo HUB Adapter converts compatible 1.375x24 HUB / Bravo-threaded suppressors to Dead Air’s KeyMo quick-detach mounting system. It is commonly used with suppressors such as the Dead Air Nomad series, Primal, Sierra-5, and many other HUB-compatible suppressors.

Dead Air designed KeyMo to give shooters a fast, repeatable, and secure suppressor mounting system. Instead of direct-threading the suppressor to the barrel, the DA428 adapter lets a compatible suppressor attach over a Dead Air KeyMo-compatible muzzle brake, flash hider, KeyMicro device, or KeyMo Zero muzzle device.

HUB / Bravo Thread Compatibility: The DA428 uses the industry-standard 1.375x24 HUB rear thread pattern, also commonly called the Omega or Bravo thread pattern. This makes it compatible with many suppressors that accept HUB mounts, including the Dead Air Nomad family and select SilencerCo Omega 300 / Bravo-pattern suppressors where approved by the suppressor manufacturer.

KeyMo Muzzle Device Required: This adapter is only one side of the system. The host firearm must be equipped with a compatible Dead Air KeyMo, KeyMicro, or KeyMo Zero muzzle device in the correct thread pitch and bore size for the firearm and caliber being used.

Not a Direct Thread Mount: The DA428 does not thread directly onto a barrel. It threads into the rear of a compatible HUB suppressor and then mounts the suppressor over a compatible KeyMo-pattern muzzle device.

Important Fitment Note: Always confirm suppressor model compatibility, HUB / Bravo rear thread compatibility, KeyMo muzzle device compatibility, barrel thread pitch, muzzle device bore size, caliber rating, host firearm type, shoulder geometry, torque requirements, and suppressor alignment before installation or live fire.

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