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Dead Air Armament Sierra 5
California Proposition 65 Warning

This product can expose you to chemicals including lead, known to cause cancer and birth defects. For more info visit P65Warnings.ca.gov.

Dead Air Armament

Sierra 5

$979.00
$839.00
Sale Price
Available California compliant

Dead Air Armament Sierra 5, Suppressor, 5.56 NATO, 4.87" Length, 1.5" Diameter, Stainless Steel Construction, Cobalt Baffles, Cerakote Finish, Black, KeyMo Mounting System, Includes 1/2X28 KeyMo Flash Hider and Flash Hider End Cap, 15.4oz Weight SIERRA5KM

Key Details
Brand Dead Air Armament
Manufacturer Part Number SIERRA5KM
UPC 810128160001
SKU DAASIERRA5KM
Current Stock 108 available
Quantity Updated Apr 23, 2026 9:45 AM
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Purchase Requirements
  • Final availability is confirmed at checkout.
In-Store Pickup Required: All firearm purchases must be picked up at our Beverly Hills location after background check completion.
Product Description

Introducing the all-new 5.56 silencer from Dead Air. From the beginning, Deadair's 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 their 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.

Features
  • MATERIALS - Stellite baffles, 17-4 PH Stainless Steel
  • FINISH - High temp Cerakote, Nitride adapter and mount
  • FINISH - High temp Cerakote, Nitride adapter and mount
  • Includes - KeyMo Adaptor, KeyMo 1/2X28 Flash Hider, TL Tool Pack
Specifications
UPC: 810128160001
Manufacturer: Dead Air Armament
Manufacturer Part #: SIERRA5KM
Model: Sierra 5
Size: 4.87"
Finish: Cerakote
Type: Suppressor