Dead Air Blast Shroud w/ DA429 KeyMo Adapter | .458 Win Mag

The Dead Air Blast Shroud provides a modular solution to reduce muzzle concussion and forward flash on short-barreled rifles and pistol-caliber carbines. Constructed from 4140 high-tensile alloy steel, the shroud mounts over Dead Air muzzle devices or directly via its threaded interface and accepts the DA429 KeyMo adapter. Its forward-directed design reduces overpressure for the shooter and bystanders while also serving as a linear compensator to help manage muzzle rise.

Common applications include installation on short-barreled rifles (SBRs) and use with suppressor-equipped systems where minimizing blast and flash is important for shooter comfort and follow-up handling. The modular KeyMo interface makes it appropriate for users who want flexible suppressor and accessory configurations.

Product Specifications

• The product is identified as the Dead Air Blast Shroud with DA429 KeyMo Adapter.
• The listed caliber compatibility is .458 Win Mag.
• The construction material is specified as 4140 HT alloy steel.
• The finish on the shroud is Black.
• The threaded interface is 1.375×32 (commonly called 1-3/8-32).
• The adapter type is DA429 KeyMo for KeyMo-compatible muzzle devices and suppressors.
• The shroud is designed to mount over Dead Air muzzle devices or attach directly via the thread adapter, providing modular compatibility with other Dead Air accessories.
• The shroud directs flash and blast forward to minimize overpressure and improve shooter comfort, functioning as a linear compensator.
• The design helps reduce perceived muzzle rise and extends the muzzle beyond the support hand for added safety, providing improved follow-up handling.
• The weight is listed as 0.47 (unit not specified by the manufacturer).
• The material field from the manufacturer is listed as Steel.
• The finish field from the manufacturer is listed as Black.
• The product is categorized under Class 3 Parts & Accessories per the supplied data.
• The UPC for this item is 810128161718.

The Blast Shroud is a practical, mechanically simple accessory for shooters who want to manage muzzle concussion and flash without altering their primary muzzle device or suppressor setup. Its rugged steel construction and KeyMo-compatible adapter provide a straightforward path to improved shooter comfort and modular accessory integration for range or professional application.