Dead Air Sierra 5 XM | 5.56 Suppressor | SIERRA5XM

The Dead Air Sierra 5 XM is a compact, quick-detach suppressor designed for 5.56/.223-class cartridges and related chamberings. It ships with a Xeno adapter and a 1/2-28 Xeno flash hider to provide a quick-detach mounting option. The design is intended for sustained, hard use and is full-auto rated with no barrel-length restrictions listed. The unit is offered in a black finish and is built around a stainless outer tube for durability.

Applications: range training and precision/competition shooting where a compact, serviceable suppressor and fast mounting options are required.

Product Specifications

• The UPC is 810128160018.
• The manufacturer is Dead Air.
• The model is listed as Sierra 5 XM.
• The manufacturer’s part number is SIERRA5XM.
• The caliber rating includes 5.56 / .223 Rem / .224 Valkyrie.
• The thread pattern is 1/2-28.
• The suppressor ships with a Xeno mount (included) for quick-detach use.
• Included accessories are a 1/2-28 Xeno flash hider and Xeno adapter.
• The outer tube material is specified as stainless steel.
• This unit is full-auto rated.
• The energy rating is listed as 2200+ ft·lbs.
• The overall length without adapter is 4.87 inches.
• The overall length with the Xeno adapter is 5.72 inches.
• The product is described as ideal for heavy firing schedules.

Compact and purpose-built, the Sierra 5 XM offers quick-detach capability with the included Xeno system and a build intended for sustained use. Its short overall length when configured without the adapter makes it suitable for applications that require a minimal footprint on the muzzle, while the included Xeno adapter and 1/2-28 flash hider provide flexibility for multiple host guns. The full-auto rating and listed energy capacity indicate a design focus on durability under demanding conditions.

Owners commonly praise the Sierra 5 XM for its durability under hard use and for providing a balanced reduction in report and visible flash while maintaining a compact form factor. These attributes make it appealing to shooters who prioritize long-term reliability and straightforward mounting options.