The Dead Air KeyMo 9mm Flash Hider (brand part number DA119) is a short, lightweight muzzle device built to work standalone or as part of Dead Air’s KeyMicro Adapter mounting system. It shares the same proven technology as Dead Air’s industry-leading KeyMo system, and it’s also compatible with the KeyMo Adapter if you want to step up to a full suppressor mounting platform later. Machined from 4140 heat-treated alloy steel and finished in black nitride, it’s threaded 1/2×28 Sig Taper and measures 2.063 inches overall. This is a genuine multi-purpose option for 9mm shooters who want flash hider performance now with an upgrade path to a complete mounting solution.

Key Specifications

• Built as a short, lightweight flash hider.
• Designed for use with the KeyMicro Adapter, functioning as a standalone flash hider too.
• Shares the same technology as Dead Air’s KeyMo mounting system.
• Also compatible with the KeyMo Adapter.
• Chambered for 9mm platforms.
• Threaded 1/2×28 Sig Taper.
• Measures 2.063 inches overall length.
• Machined from 4140 heat-treated alloy steel.
• Finished in black nitride.

Frequently Asked Questions

What caliber is this flash hider built for? 9mm.

What’s the difference between using this alone versus with the KeyMicro Adapter? On its own, it functions as a minimalist flash hider; paired with the KeyMicro Adapter, it becomes a complete suppressor mounting platform.

What thread pattern does it use? 1/2×28 Sig Taper.

Buy the Dead Air KeyMo 9mm Flash Hider

Dead Air built the KeyMo system for shooters who want flexibility, buy the flash hider now and add the KeyMicro Adapter or full KeyMo Adapter whenever you’re ready. Shop more Dead Air Silencers parts or browse our full Class 3 parts and accessories selection to complete your build. Order it from our Lubbock, Texas gun shop for fast, reliable shipping.