The Dead Air KeyMo Flash Hider (brand part no. DA301) is a 1/2×28 flash hider that doubles as the quick-detach mount for Dead Air Silencers’ Sandman series and other KeyMo-equipped suppressors. Its patent-pending design uses mass-shifted, equal-length tines, eliminating the ringing ping that plagues conventional flash hiders under a can. The bore is sized at .224 for 5.56mm rifles, a pre-drilled pin-and-weld hole sits at the 6 o’clock position for permanent installs, and the whole device is backed by a lifetime warranty. Among AR muzzle devices, this KeyMo flash hider favors Sandman owners who want flash suppression at the muzzle and a fast, repeatable suppressor mount in one part.

Key Specifications

• The threads are 1/2×28, bored to .224 for 5.56mm rifles.
• Serves as the KeyMo quick-detach mount for Sandman-L, Sandman-S, and Sandman-K suppressors, plus KeyMo-equipped Nomad-30 and Primal cans.
• The mass-shifted, equal-length tines eliminate flash-hider ping under a suppressor.
• The length is 2.7 inches.
• A pre-drilled pin-and-weld hole at 6 o’clock supports permanent installation.
• Backed by a lifetime warranty.

Frequently Asked Questions

Is this flash hider an NFA item? No. It is a muzzle device and suppressor mount, not a suppressor, so it requires no ATF paperwork.

Which suppressors mount on it? Dead Air Sandman-L, Sandman-S, and Sandman-K, plus Nomad-30 and Primal suppressors fitted with KeyMo mounts.

Why the unusual tine design? The mass-shifted, equal-length tines stop the ringing ping conventional flash hiders make when fired under a suppressor.

Buy the Dead Air KeyMo Flash Hider

Flash suppression and a fast KeyMo suppressor mount in one warrantied device are exactly what this DA301 delivers. Order it from our Lubbock, Texas gun shop for fast shipping.