Dead Air Silencers Sierra 5 KM w/KeyMo 5.56 Suppressor

Description

The Dead Air Silencers Sierra 5 KM is a purpose‑built, compact 5.56 suppressor designed for hard use and professional applications. It pairs welded Stellite baffles with a stainless outer tube for a durable, long‑life construction and ships with a KeyMo adapter and a 1/2-28 KeyMo flash hider. Yinz’ll appreciate the utilitarian knurling and user‑configurable HUB compatibility that make this unit ready for heavy firing schedules.

Key Specifications

• Caliber rating includes 5.56 / .224 Valkyrie as listed in the product data.
• The thread pattern is 1/2-28 for the included KeyMo flash hider.
• The body length measures 4.87 inches (specified as length without adapter).
• Length when fitted with the KeyMo adapter measures 6.27 inches as noted in the product description.
• The overall diameter is 1.5 inches for a compact profile on modern rifle platforms.
• Construction uses stainless steel components with welded Stellite baffles for wear resistance.
• This unit is listed as full‑auto rated and has no documented barrel length restrictions.
• Included accessories are a KeyMo adapter and a 1/2-28 KeyMo flash hider for quick detach mounting.
• The design uses a quick‑detach (KeyMo) style for fast removal and reattachment in the field.

The Sierra 5 KM is aimed at users who need a compact, durable suppressor that balances sound and flash management while standing up to demanding use. Its welded baffle stack and stainless construction focus on longevity rather than saving ounces, and the KeyMo mounting makes it simple to configure for different host rifles. If yinz want a robust 5.56 solution with modular mounting options, the Sierra 5 KM brings straightforward capability without fuss.

Just a heads up, n’at: some of the product descriptions on our site are created or assisted by AI. We do our best to make sure everything’s accurate, but every now and then the info might be a little off—kinda like tryin’ to find parking on the South Side on a Friday night.

Details like specs, features, pricing, or availability might not always be perfect, so yinz should double-check anything important before buyin’.

If yinz spot somethin’ that doesn’t look right, give us a shout and we’ll fix it up quicker than a Primanti’s sammich disappears at lunchtime.

This is a regulated item and must be sent to an FFL but can be shipped direct to door for PA residents ONLY.

See our Policies for more information.

Related Videos: