Dead Air Sierra 5 Suppressor 5.56mm w/ KeyMo Adapter & 1/2-28 Flash Hider Overview: The Dead Air Sierra 5 is a high-performance, hard-use suppressor designed specifically for 5.56 platforms. Engineered with full-auto capabilities and no barrel length restrictions, it features a robust construction of welded Cobalt 6 baffles and a stainless steel outer tube. With its compact design, outstanding sound suppression, and reduced flash signature, the Sierra 5 excels in professional and tactical applications. The included KeyMo adapter and 1/2-28 flash hider provide modularity and user customization, ensuring compatibility with a wide range of mounting systems. The Dead Air Sierra 5 with KeyMo adapter delivers exceptional modularity, durability, and performance for shooters seeking a reliable suppressor for high-demand applications. With its superior construction and adaptable design, it's a top-tier choice for 5.56 platforms. Key Features: Caliber Rating: 5.56 NATO, .224 Valkyrie Energy Rating: 2200+ ft-lbs Length (Without Adapter): 4.87 inches Length (With KeyMo Adapter): 6.27 inches Diameter: 1.5 inches Weight (Without Adapter): 10.8 ounces Weight (With KeyMo Adapter): 15.4 ounces Materials: Fully welded Cobalt 6 baffles with stainless steel outer tube Finish: Black CerakoteA(R) Specifications: Mounting System: Ships with KeyMo adapter and 1/2-28 flash hider; compatible with HUB (1.375-24") mounting systems Full Auto Rated: Yes Barrel Restrictions: None Bore Diameter: 5.56mm Applications: Tactical operations Heavy firing schedules Full-auto and high-volume shooting Additional Features: Flash Hider Front Cap: Reduces visual signature for tactical advantage. Interchangeable Front Caps: Compatible with R-Series front caps, including the E-Brake. Fully Welded Construction: Ensures maximum strength and durability. Knurled Design: Provides a secure grip for attaching and removing the suppressor. Pin & Weld Option: Small blast chamber hole allows for permanent attachment. SKU: DAASIERRA5KMUPC: 810042342637