Resurrecting an old thread... There’s another repro Sten silencer on the market:

MKII (S) Sten Silencer for Deactivated Sten

Looks like they’ve got the length right, but the end cap wrong.

Also a MkV blanking plate:

Sten Gun Blanking Plate

But it’s missing the ‘dimple’ on the back.

Also the desirable Mk3 ‘loop’ stock:

Sten Gun No3 Mk1 Skeleton Stock

Over to the experts as to how accurate it is.