Dead Air Sierra 5 XM 5.56mm Suppressor with Xeno Adapter and Flash Hider OverviewThe Dead Air Sierra 5 XM is a dedicated 5.56 silencer built for durability, performance, and versatility. Engineered for professional and heavy-use applications, it features fully welded Cobalt 6 baffles encased in a stainless steel tube for unmatched strength and reliability. Optimized for the 5.56 platform, the Sierra 5 XM delivers exceptional sound and flash suppression in a compact and lightweight design. Equipped with a Xeno adapter and 1/2-28 Xeno flash hider, it provides seamless modularity and flexibility through its HUB-compatible mounting system. Key Features Caliber Rating: 5.56 NATO, .224 Valkyrie Length (Without Adapter): 4.87 inches Length (With Xeno Adapter): 5.72 inches Diameter: 1.5 inches Weight (Without Adapter): 10.8 ounces Weight (With Xeno Adapter): 13.3 ounces Material: Cobalt 6 baffles with stainless steel outer tube Finish: Black CerakoteA(R) Mounting System: Ships with 1/2-28 Xeno adapter and flash hider; compatible with 1.375-28" HUB mounting adapters Specifications Energy Rating: 2200+ ft-lbs Bore Diameter: 5.56mm Full Auto Rated: Yes Barrel Restrictions: None UPC: 810128160018 Manufacturer SKU: Sierra5XM ApplicationsIdeal Use Cases: Tactical operations Heavy firing schedules Full-auto and high-volume shooting Additional Features Flash Hider Front Cap: Reduces visual signature for optimal stealth. Interchangeable Front Caps: Compatible with Dead Air R-Series caps, including the E-Brake. Fully Welded Construction: Monolithic core with full-penetration laser welding ensures unmatched durability. Modular Mounting: Ships with the Xeno system but is adaptable to other mounting options via HUB-compatible sockets. Utilitarian Design: Knurled outer tube for secure handling and heat wrap attachment; heavy lug tooling for easy adapter adjustments. Pin & Weld Capability: Designed for permanent attachment when required. The Dead Air Sierra 5 XM sets a new standard for 5.56 suppressors with its robust construction, precision-engineered performance, and modular flexibility. Built for serious users, it's the ideal suppressor for professional and tactical applications where reliability and adaptability are paramount.