Dead Air DA458 Xeno SilencerCo Legacy Pistol Adapter The Dead Air Xeno SilencerCo Legacy Pistol Adapter is an accessory designed to enable the compatibility of Dead Air Xeno series silencers with legacy pistol barrels designed for SilencerCo suppressors. This Dead Air DA458 adapter facilitates the attachment of Dead Air Xeno series silencers to pistols that have SilencerCo legacy mounts, enhancing the versatility of your suppressor collection and providing greater options for firearm compatibility. Dead Air Xeno, SilencerCo Legacy Pistol Adapter DA458