Dead Air KeyMo Flash Hider | M13x1LH | DA311

The Dead Air KeyMo flash hider DA311 is designed for Steyr AUG rifles chambered in .22 caliber with M13x1LH left-hand threads. It uses a mass-shifted equal-length tine design intended to reduce audible “ping” and to provide a stable mount for KeyMo-compatible suppressors. The unit is compatible with Dead Air’s Sandman series and KeyMicro-equipped Wolfman, and includes a pre-drilled pin and weld hole at the 6 o’clock position.

Common applications include precision rimfire training and range use where fast, repeatable suppressor attachment and removal are priorities.

Product Specifications

• The thread pattern is M13x1LH.
• The manufacturer part number is DA311.
• The model is listed as KeyMo.
• The material is 4140 HT Alloy Steel.
• The finish is Black.
• The overall length measures 2.70 inches as provided in source data.
• The caliber/gauge is listed as .22 Caliber.
• Compatibility is specified as Sandman Series and KeyMicro-equipped Wolfman suppressors.
• This flash hider includes a pre-drilled pin and weld hole at 6 o’clock.
• The UPC is 810128160513.

Built from heat-treated alloy steel and designed to interface cleanly with KeyMo mounts, this flash hider provides a durable, low-profile mounting point for compatible suppressors on Steyr AUG .22-caliber platforms. Its equal-length tine geometry is intended to minimize resonant “ping,” and the inclusion of a 6 o’clock pin/weld hole allows for permanent retention if required by the user. For shooters who prioritize reliable mounting and uncomplicated suppressor removal during range or training use, this unit offers a purpose-driven option.