Dead Air Sierra 5 KeyMo Mount Kit, 5.56mm, Black, Suppressor

The Dead Air Sierra 5 with KeyMo is a lightweight, dedicated 5.56 NATO suppressor engineered for exceptional performance on AR-15 platforms, SBRs, and high-volume shooting scenarios. Featuring fully welded Cobalt 6 (Stellite) baffles encased in a durable stainless steel tube with high-temp Black Cerakote finish, it delivers balanced sound reduction, superior flash suppression, and minimal back pressure while handling extreme heat and sustained full-auto fire without barrel length restrictions. Rated for 5.56 NATO and 224 Valkyrie with an energy rating over 2200 ft-lbs, this compact can measures 6.27 inches in overall length (with KeyMo adapter) and 1.5-1.55 inches in diameter, weighing just 15.4 ounces assembled—making it one of the lightest full-auto-rated options in its class for maintaining rifle balance and agility.

The included KeyMo quick-detach system provides fast, secure, and repeatable attachment to compatible Dead Air KeyMo muzzle devices, ensuring rock-solid lockup under recoil while remaining HUB-compatible (1.375x24) for future adaptability. Optimized baffle design prioritizes a clean tone, reduced muzzle flash, and reliability across short-barreled rifles to longer precision builds, ideal for tactical, duty, or recreational use where durability and low signature matter most. Its knurled exterior aids in grip during installation or removal, even when hot, and the construction withstands heavy firing schedules that would challenge lesser suppressors.

Built to Dead Air's "No Quarter" standard, the Sierra 5 combines compact size, minimal added weight, and professional-grade toughness into a versatile 5.56 suppressor that excels in demanding environments. Whether suppressing a CQB setup or a duty rifle, it offers top-tier suppression without excessive bulk or compromise, backed by Dead Air's reputation for innovation and reliability.

Add elite 5.56 suppression with quick-detach convenience to your rifle—shop the Dead Air Sierra 5 with KeyMo at Battlehawk Armory today!

Specifications:

• Caliber: 5.56 NATO, .224 Valkyrie
• Energy Rating: 2,200+ FT/LBS
• Bore Diameter: 5.56mm
• Length: 4.87" w/ No Adapter
• Diameter: 1.5"
• Weight: 10.8 oz w/ No Adapter
• Materials: Cobalt 6 Barrles, Stainless Steel
• Finish: Black Cerakote
• Usage: Ideal for Heavy Firing Schedules
• Barrel Restricktions: None
• Full-Auto Rated: Yes