Dead Air Silencers Sierra-5Km - 5.56 Silencer W/ Key Mount
$789.00
$929.00
(You save
$140.00
)
The Dead Air Silencers Sierra-5Km is a purpose-built 5.56 suppressor designed for shooters who demand both performance and durability under serious use. This KeyMo-equipped silencer pairs proven sound and flash suppression with a modular mounting system that lets you configure it to your specific rifle setup. Whether you're running a short-barreled rifle, a full-length carbine, or anything in between, the Sierra-5Km delivers on Dead Air's no-compromise philosophy: welded Cobalt 6 baffles, stainless steel construction, and full-auto rating with zero barrel length restrictions.
Dead Air engineered the Sierra-5Km to handle heavy firing schedules without babying itself. The fully-welded baffle stack and outer tube create a monolithic core that doesn't sacrifice durability for weight savings. The knurled aluminum tube isn't pretty for pretty's sake—it gives you a solid grip for removal and serves as an ideal anchor for heat wraps during sustained fire. The included 1/2-28 KeyMo flash hider cuts visual signature, and because the Sierra-5Km accepts the HUB-compatible 1.375-24" mounting standard, you can swap adapters and front caps (including Dead Air's E-Brake) without permanent commitment.
At 10.8 ounces and just 4.87 inches long (without adapter), the Sierra-5Km stays compact on shorter platforms while delivering the suppression efficiency you'd expect from a dedicated 5.56 can. The modular design means you're not locked into one mounting system—upgrade your rifle's muzzle device later and the suppressor moves with you. For precision shooters, tactical competitors, and hunters who refuse to compromise on versatility or reliability, the Sierra-5Km is the last 5.56 suppressor you'll need.
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