Is a Dreamline barrel/shroud extension even a thing?

[MACTEN]

I had thoughts of putting a power plenum on the dreamline with 600mm barrel. Of course with the longer tube these have I would need a shroud extension. I see one for the Wildcat MK I but that has a female M20 thread it seems. Other than going to the hardware store, is there one out there ? (20mm OD and at least 1.2" Length 1/2 M to 1/2 FM)

 

[Sqwirl57]

I had the Power Plenum on my 600mm .25 Dreamline without needing anything else. The moderator cleared everything just fine.

As a side note, my Dreamline was a little bit older. My buddy bought a newer Dreamline and went to install a PP and there was one already there. The new PP wouldn't even screw in (pretty sure that's what he said).

 

[MACTEN]

The newer dreamlines have the reg inside a power plenum. The additional plenum should screw in as I believe the male receiver threading is still the same. This tube is long enough that it's barley behind the muzzle.