DEAD AIR ARMAMENT BLAST SHROUD 9MM W/DA452 KEYMICRO ADAPTOR The Dead Air Blast Shroud is designed to tame the concussion of short-barreled rifles and pistol-caliber carbines. The Blast Shroud mounts over existing Dead Air muzzle devices (or can thread on directly with DA471). It diverts the bright flash and annoying concussion forward of the muzzle, creating a much more pleasant shooting environment for the operator and everyone around him. Gone are the days of cursing and lethal stares by those shooting nearby. BLAST REDUCTION: Less concussion and sound for the shooter and those next to them for faster follow-up shots and less annoyance to everyone nearby. D Mfg: Dead Air Armament