Im pretty certain that No.4 Enfield, STEN, BREN, PIAT would all rise for the grave and rear there ugly head like the 4 horsemen of the apocalypse. Im also guessing more than a couple M27A1 Thompson and MP-40's could show up as well.
From what I have heard from some residents of the South Boston Area apparently the STEN was common in Norther Ireland. Of course the AKM, G3A3, Coveted AR-18 show up there as well, But I doubt they would be just handing them out
A UK ex pat told me he had several firearms that he took to Scotland in the early 80's and he had a hunting rifle made from a Model 1917 Enfield but re chambered from .30-06 to 7.62NATO, restocked bedded and mounting a German scope.
This makes me want to watch the original T.V. show SURVIVORS!