The Dead Air Lazarus 6 KeyMo FDE suppressor comes ready to mount, with a KeyMo adapter, a 1/2-28 KeyMicro flash hider and a tool pack in the box (Dead Air part no. LZ6KMFDE). Dead Air rates the Lazarus 6 full-auto for 5.56 NATO and 6mm ARC with no barrel length restrictions, and built it for hard use and heavy firing schedules. The body is 3D-printed from Haynes 282 superalloy and finished in Flat Dark Earth high-temperature Cerakote, while the adapter, mount and front cap carry a nitride finish. The 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

• It ships with a KeyMo adapter, a 1/2-28 KeyMicro flash hider and a TL tool pack, ready to mount on a 1/2-28 barrel.
• The mount is KeyMo, a quick-detach system that locks onto KeyMo and KeyMicro muzzle devices.
• The caliber rating is full-auto rated for 5.56 NATO and 6mm ARC, as Dead Air publishes it.
• Dead Air lists no barrel length restrictions, so the rating is not tied to a minimum barrel.
• 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 precipitation-strengthened nickel superalloy designed for extreme-duty use.
• The finish is Flat Dark Earth high-temperature Cerakote, with a nitride finish on the adapter, mount and front cap.
• It is Dead Air HUB compatible, so the rear mounting system can be swapped to suit another host.

Frequently Asked Questions

Is the flash hider included? Yes. Dead Air includes a 1/2-28 KeyMicro flash hider, the KeyMo adapter and a TL tool pack, so the suppressor can go on a 1/2-28 threaded barrel right away.

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 lists it as full-auto rated for 5.56 NATO and 6mm ARC, with no barrel length restrictions.

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

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.