Dead Air Sierra 5 KeyMo 5.56 w/ KeyMo Adapter

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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