The Dead Air Lazarus 6 KeyMo FDE suppressor comes ready to mount, with a KeyMo adapter and a 1/2×28 KeyMicro flash hider in the box (Dead Air part no. LZ6KMFDE). Dead Air designed the Lazarus 6 as a 6mm silencer for 5.56 NATO and 6mm ARC rifles, rated full-auto and built for demanding firing schedules. The body is 3D-printed from Haynes 282 superalloy and finished in Flat Dark Earth Cerakote. Dead Air’s Triskelion Gas Management System keeps back pressure low, which helps keep gas out of the shooter’s face. For a patrol or competition carbine that runs hard, it is a durable, gas-managed choice.

Key Specifications

• The caliber rating is 5.56 NATO and 6mm ARC, and the can is designed for 6mm and below and rated for full-auto fire.
• The mount is KeyMo, a quick-detach system for matching muzzle devices.
• Length with the KeyMo mount is 6.4 inches, the figure that sets how far it extends past the muzzle.
• Weight with the KeyMo mount is 18.4 ounces, worth knowing before pairing it with a light rifle.
• Diameter is 1.63 inches, so check clearance under your handguard and optic.
• The body is 3D-printed from Haynes 282, a nickel superalloy chosen for hard use.
• The finish is Flat Dark Earth Cerakote, which holds up to heavy firing schedules.
• The patented Triskelion Gas Management System delivers minimal back pressure, which keeps gas out of the shooter’s face and reduces wear on the rifle.
• It is HUB compatible, so the rear mounting system can be swapped for other industry mounting systems.
• It ships with a KeyMo adapter and a 1/2×28 KeyMicro flash hider, ready to mount on a 1/2×28 barrel.

Frequently Asked Questions

Is the flash hider included? Yes. This version includes the KeyMo adapter and a 1/2×28 KeyMicro flash hider, so the suppressor can go on a 1/2×28 threaded barrel.

Do I need ATF approval to buy this? No. As of October 9, 2026, ATF no longer requires Form 4 approval, registration or a tax stamp for suppressors. It transfers on a Form 4473 with a background check through a Class 3 (SOT) dealer. State and local laws still apply.

What does Dead Air rate the Lazarus 6 for? Dead Air designed the Lazarus 6 for 6mm and below and rates it full-auto for 5.56 NATO and 6mm ARC.

Buy the Dead Air Lazarus 6 KeyMo Suppressor with KeyMicro Flash Hider, FDE Cerakote

As of October 9, 2026, this suppressor transfers on a Form 4473 with a background check at your Class 3 (SOT) dealer, with no Form 4 or tax stamp; state and local laws still apply. Order through Dead Air‘s suppressor lineup and our Lubbock, Texas team will handle the transfer, and it ships fast to your Class 3 dealer.