The Dead Air Lazarus 6 KeyMo black suppressor is the KeyMo-mount version of the Lazarus 6, a silencer designed to withstand demanding firing schedules and harsh environments (Dead Air part no. DASLZ6KMBLK). The body is 3D-printed from Haynes 282, a nickel-based superalloy, and finished in black Cerakote. Dead Air’s patented Triskelion Gas Management System delivers strong sound reduction with minimal back pressure, which keeps gas out of the face and reduces wear on the rifle. With the KeyMo adapter it measures 6.4 inches and weighs 18.4 ounces. It suits a shooter who runs KeyMo or KeyMicro muzzle devices across several rifles.

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 black 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.
• The flash hider front cap is compatible with all R-Series front caps.

Frequently Asked Questions

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.

How does the KeyMo version differ from the Xeno version? The KeyMo version measures 6.4 inches and weighs 18.4 ounces, against 5.89 inches and 16.5 ounces with the Xeno mount, and it uses the KeyMo mount in place of the Xeno one.

Is the Lazarus 6 rated for full-auto fire? Yes. Dead Air designed it for 6mm and below and rates it full-auto, with the 5.56 NATO and 6mm ARC calibers listed.

Buy the Dead Air Lazarus 6 Suppressor, Black, KeyMo Mount

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.