The Dead Air Sierra 5 Xeno is a compact, hard-use 5.56 suppressor engineered for shooters who demand maximum durability, dependable suppression performance, and lightweight mounting efficiency. Designed specifically for high-volume firing schedules and professional-grade use, the Sierra 5 delivers outstanding sound and flash reduction while maintaining a compact overall footprint ideal for carbines and SBR platforms.
Purpose-built as a true hard-use silencer, the Sierra 5 is constructed around a proven combination of welded Cobalt 6 baffles wrapped in a durable stainless steel outer tube. Dead Air intentionally prioritized strength, reliability, and long-term durability over minimizing every ounce, resulting in a suppressor capable of handling aggressive firing schedules, extreme heat, and demanding environments. The suppressor is fully capable of sustained use on hard-running rifles and is full-auto rated with no barrel length restrictions.
This Sierra 5 configuration includes the lightweight and highly efficient Dead Air Xeno mounting system, along with an included 1/2x28 Xeno flash hider for quick and secure suppressor attachment. The Xeno system offers a compact, low-profile mounting solution that minimizes added weight while providing excellent lockup consistency and repeatable alignment. The included 1/2x28 Xeno flash hider allows immediate compatibility with most standard 5.56 rifle platforms.
For additional flexibility, the Sierra 5 also supports HUB compatible (1.375-24”) mounting adapters, giving shooters the ability to configure the suppressor with a wide range of industry-standard mounting systems. This modular HUB compatibility provides long-term versatility and allows users to adapt the suppressor to evolving rifle setups and mounting preferences.
Built for professional-duty applications, training, defensive use, and heavy recreational shooting, the Sierra 5 balances compact dimensions, exceptional durability, and reliable suppression performance into one of the most versatile hard-use 5.56 suppressors available.
FEATURES
Includes 1/2x28 Xeno Flash Hider
Dead Air Xeno Mounting System
HUB Compatible (1.375-24”) Adapter Support
Hard-Use 5.56 Suppressor Design
Full-Auto Rated Construction
No Barrel Length Restrictions
Welded Cobalt 6 Baffles
Stainless Steel Outer Tube
Compact & Lightweight Configuration
Professional & Duty-Grade Durability
Excellent Flash & Sound Suppression
Ideal for Heavy Firing Schedules
Optimized for Carbines & SBR Platforms
Black Cerakote Finish
5.56 NATO & .224 Valkyrie Rated
IMPORTANT SPECS
Manufacturer: Dead Air Silencers
Model: Sierra 5
UPC: 810128160018
SKU: SIERRA5XM
Suppressor Type: Rifle Suppressor
Caliber Rating: 5.56 NATO / .224 Valkyrie
Energy Rating: 2200+ ft-lbs
Bore Diameter: 5.56mm
Mount Compatibility: HUB Compatible (1.375-24”)
Included Mounting System: Xeno
Included Flash Hider: 1/2x28 Xeno Flash Hider
Length (No Adapter): 4.87"
Length (With Xeno): 5.72"
Diameter: 1.5"
Weight (No Adapter): 10.8 oz
Weight (With Xeno): 13.3 oz
Materials:
Welded Cobalt 6 Baffles
Stainless Steel Outer Tube
Finish: Black Cerakote
Usage: Ideal for Heavy Firing Schedules
Barrel Restrictions: None
Full Auto Rated: Yes
Patent Number: 11441867
Factory Configuration Includes:
Dead Air Sierra 5 Suppressor
Xeno Mounting System
1/2x28 Xeno Flash Hider
Manufacturer Documentation
DISCLAIMER: Suppressors ship the same day once ATF Form 3 approval is received. Current approvals are typically 1–2 days.
