Quote Originally Posted by Graham2 View Post
The fact that Daystate and FX use Walther barrels is irrelevant I'm afraid.

Daystate rifles and FX Verminators both have shrouded barrels, so it's the diameter of the shroud that's important.
A Veminator doesn't have a shrouded barrel, does it? Last one I saw didn't.

As for fit, it also depends how far it comes back over the barrel, the cylinder may get in the way.