The Dead Air Armament KeyMo Flash Hider is engineered specifically for the SCAR 17 platform with 5/8×24 muzzle threads. It features a patent-pending design with mass-shifted equal-length tines, and because of this, you get a flash hider that does not ping under fire. As a result, the Dead Air Armament KeyMo Flash Hider is the go-to muzzle device for SCAR 17 shooters who demand both effective flash suppression and a reliable suppressor interface.

In addition, the KeyMo Flash Hider is compatible with the Sandman-L, Sandman-S, Sandman-K, and KeyMo-equipped Nomad-30 or Primal suppressors. Furthermore, because the KeyMo mounting system locks up repeatably and securely, you can swap the suppressor on and off without losing zero. Moreover, at just 4.0 oz, it adds minimal weight to your SCAR 17 build. When ordering, keep in mind that flash hider bores are sized to the thread pitch — the 5/8×24 version is bored to .30 caliber to accommodate .30 cal projectiles.

However, if you are running a 1/2×28 host, that version is bored to .224 for 5.56 NATO. Therefore, always select the correct thread pitch for your host firearm before purchasing the Dead Air Armament KeyMo Flash Hider.

Dead Air Armament KeyMo Flash Hider Key Features

• Patent-pending mass-shifted equal-length tines — no-ping design
• KeyMo quick-attach suppressor interface
• Compatible suppressors: Sandman-L, Sandman-S, Sandman-K, Nomad-30, Primal
• Optimized for SCAR 17 platform
• 5/8×24 thread pitch (bored to .30 cal)
• Weight: 4.0 oz
• Black finish

Specifications

The Dead Air Armament KeyMo flash hider serves a dual purpose on the host firearm: it functions as a standard flash hider to reduce visible muzzle signature, and it acts as the muzzle-end adapter for Dead Air’s KeyMo quick-attach suppressor mounting system. The KeyMo interface allows a compatible Dead Air suppressor to be attached and detached quickly without tools, making it practical to move the suppressor between multiple host firearms that are each fitted with a KeyMo mount. The 5/8×24 thread pitch is the standard muzzle thread used on .308 Winchester, 6.5 Creedmoor, and other large-caliber rifles, including the FN SCAR 17S in its standard configuration. Suppressor-ready builds benefit from installing the KeyMo flash hider even before a suppressor is purchased, as it functions as a normal muzzle device until the suppressor is added later. Installation requires timing the flash hider to the correct rotational position using shims or a crush washer appropriate for the host barrel’s muzzle thread. For SCAR 17 owners or .308 AR-10 platform shooters running Dead Air suppressors, the KeyMo flash hider is the required muzzle device to enable the KeyMo quick-attach interface on their host firearm.