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Dead Air Armament
Overview
The Dead Air DA119 KeyMo 9mm Flash Hider is designed to effectively reduce the visible flash when firing, making it an essential component for stealth and accuracy. With a thread pitch of 1/2x28, it easily attaches to a variety of compatible barrels, enhancing versatility for multi-caliber builds. This flash hider is commonly found in builds focused on tactical applications or those aiming for reduced signature during shooting.
Dead Air DA119 KeyMo 9mm Flash Hider
Prices checked
Builders have added the Dead Air DA119 KeyMo 9mm Flash Hider to their builds on GunPartPicker. Since April 2026, it ranks #82 of the 560 muzzle devices builders have added.
Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, and today 3 of the 6 retailers we track have it in stock. It dipped to $69 at KY Gun Company for a stretch in October 2026, under its usual $72.29, so sales do come around. Buying today, the lowest price is $74.99 at Brownells, above October's low of $69, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
We ranked every muzzle device by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Muzzle Device Guide →Check it against the live catalog:
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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the Dead Air DA119 KeyMo 9mm Flash Hider
| Build | Parts | Total |
|---|---|---|
![]() | 27 | $4932.14 |
![]() | 21 | $2227.87 |
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