Description
The Dead Air Sierra 5 KeyMo is a compact, hard-use suppressor engineered for 5.56-class cartridges. It combines welded Stellite® baffles with a stainless steel outer tube to prioritize durability and sustained firing performance. Out of the box this configuration includes a KeyMo quick-detach adapter and a 1/2-28 KeyMo flash hider for QD mounting and accessory compatibility.
Designed for professional and heavy-use environments, the Sierra 5 is full-auto rated and carries no barrel length restrictions. Its knurled outer profile provides a functional grip surface while keeping a minimal footprint.
Key Specifications
- The approved cartridge ratings are 5.56 NATO and .224 Valkyrie.
- The length without adapter measures 4.87 inches.
- The length with the KeyMo adapter installed measures 6.27 inches.
- The outside diameter is 1.50 inches.
- The weight without adapter is 10.8 ounces.
- The weight with the KeyMo adapter and 1/2-28 KeyMo flash hider is 15.4 ounces.
- The suppressor uses welded Stellite baffles with a stainless steel outer tube.
- The thread pattern for the included flash hider is 1/2-28.
- The exterior finish is listed as Black Cerakote.
- This unit is full-auto rated and intended for heavy firing schedules.
Compact, durable, and built for sustained use, the Sierra 5 KeyMo balances sound and flash mitigation with a minimal profile. Whether configured for duty use, range work, or precision 5.56/.224 Valkyrie platforms, this Dead Air suppressor offers proven construction and quick-detach versatility via the KeyMo system.
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