This is produced at the Mendip Shooting Ground, and works on the same principle as Steyr's own bloop tube on the 10 metre match variant.

It slides over the end of the barrel and locks into place with a bayonet fitting.

On the end is a male thread to fit most silencers.

Has anyone got one? If so, I'd appreciate your opinions on its effectiveness.

Also could anyone tell me if the Steyr barrel is stainless steel or nickel plated?