UMP9 suppressor brand

In the Bond movie Casino Royale a suppressed UMP is shown. However when i look for suppressors for a UMP i can only find ones that seem to have a big notch between the barrel and the suppressor itself. Whereas in the one portrayed there seems to be no notch.

Does anyone know the brand of the ones without the 'notch' and is there a certain term for these? I prefer them on most guns.

(I'm not a gun expert, so i probably butchered some gun-terms here)