The Dead Air Sierra 5 (brand part no. SIERRA5XM) is a 5.56mm-rated suppressor built for professional-grade performance, offering exceptional sound and flash suppression without compromising durability. Dead Air welds Cobalt 6 baffles inside a stainless steel outer tube for strength under sustained use, and this configuration ships with a Xeno quick-detach adapter and a 1/2-28 Xeno flash hider for fast mounting. The Sierra 5 favors shooters who want a rugged, purpose-built 5.56 can that can take a beating.

Key Specifications

• Rated for 5.56mm-class cartridges for effective sound and flash suppression.
• Built with welded Cobalt 6 baffles for heavy-use durability.
• Housed in a stainless steel outer tube for added strength.
• Includes a Xeno quick-detach mount and 1/2-28 Xeno flash hider for fast, secure attachment.

Frequently Asked Questions

Is this an NFA item? Yes. As a suppressor, it's a Title II firearm requiring an approved ATF Form 4 and transfer through an NFA-licensed dealer.

What caliber is it rated for? 5.56mm-class cartridges.

What mounting system does it use? A Xeno quick-detach mount with a 1/2-28 flash hider included.

Buy the Dead Air Sierra 5 Suppressor, 5.56mm, with Xeno Mount

This is a Title II item regulated under the National Firearms Act. Purchase requires an approved ATF Form 4, no federal transfer tax, and transfer through a licensed NFA (SOT/Class 3) dealer, with an extended federal approval wait before delivery. Order through Dead Air Silencers‘s silencers and suppressed firearms lineup and our Lubbock, Texas team will walk you through the transfer process.