Dead Air Armament | Sierra 5 KeyMo

Dead Air Armament

MSRP: $929.00
Sale! $789.00
(You save $140.00 )

Introducing the all-new 5.56 silencer from Dead Air. From the beginning, our mission has been to take No Quarter in design, performance, and technology. The Sierra-5 stands true to that mission by giving you everything you want out of a dedicated 5.56 silencer.

Built for professional use, it offers the perfect balance of overall sound and flash suppression while maintaining a compact footprint and minimal weight. By utilizing HUB compatible (1.375-24) mounting adapters, it can be configured to the end user’s specific needs and is available out of the box with either our KeyMo or Xeno mounting system.

Featuring the proven winning combination of welded Stellite baffles wrapped in a stainless outer tube, the Sierra-5 boasts a clean and utilitarian knurled design that provides both function and form.


  • Materials: Stellite baffles, 17-4 PH Stainless Steel
  • Finish: High Temp Cerakote, Nitride adapter and mount
  • Caliber Rating: 5.56/.223, .224 Valkyrie
  • Energy Rating: 2200 ft/lbs.
  • Barrel Restrictions: None
  • Diameter: 1.55"
  • Length: 6.27"
  • Weight: 15.4oz
  • Mount: KeyMo (included)
  • Includes: KeyMo Adapter, KeyMo 1/2x28 Flash Hider, TL Tool Pack

Note: This is a NFA item and must be shipped to a qualified FFL.