The Dead Air Blast Shroud with the DA429 KeyMo Adapter in 1-3/8×32 (Dead Air part no. DA464) pairs a shroud with the KeyMo S mount for the 1-3/8-32 pattern. It diverts flash and concussion forward of the muzzle, which makes short-barreled rifles and pistol-caliber carbines far more comfortable to shoot beside others. The kit is a longer, heavier build than the shroud-only models, with the adapter included. Dead Air uses 4140 heat-treated steel and 17-4 stainless and finishes it in black nitride.

Key Specifications

• The adapter in the kit is the DA429 KeyMo S mount, so the shroud arrives ready to attach.
• The thread pattern is 1-3/8×32, which is the S mount size rather than the 1-3/8-24 HUB size.
• Overall length is 3.00 inches, extending the muzzle on a short barrel.
• Weight is 7.6 ounces, the heaviest kit in the shroud group besides the Wolverine version.
• The through bore is .458 caliber, the clearance for this kit.
• Materials are 4140 heat-treated steel and 17-4 stainless, a combination of toughness and corrosion resistance.
• The finish is black nitride, which wears well on muzzle hardware.

Frequently Asked Questions

Is the thread the same as HUB? No. This kit uses the DA429 KeyMo S mount in 1-3/8×32, while Dead Air’s HUB interface is 1-3/8-24. Match the thread before ordering.

What is in the box? The kit includes the Blast Shroud and the DA429 KeyMo Adapter. A shroud-only version for the same 1-3/8-32 pattern is sold separately under its own part number.

What does a Blast Shroud do? It mounts over existing Dead Air muzzle devices and diverts flash and concussion forward, which Dead Air designed for short-barreled rifles and pistol-caliber carbines.

Buy the Dead Air Blast Shroud with DA429 KeyMo Adapter, 1-3/8×32

For owners who run the S mount pattern, this is the complete shroud kit with no extra purchase needed. Order it from our Lubbock, Texas gun shop for fast direct shipping, and see more Class 3 parts and accessories from Dead Air.