I had a King Arms Tommy with drum mag and it was very accurate in both senses of the word, real wood furniture and a wind up drum mag that I almost felt like getting a 1911 to go with it, would have complimented each other nicely.
Big, easy to wind and load magazine, not quite as easy to swing as a modern assault type weapon. It was a "gangster" model with a drum mag and forward grip but those were used in WW2.
I currently have the Webley MK6, (albeit in .177 rifled but I understand the airsoft is just the same but for bore). It is fantastic solid feeling, authentic and even comes with a repro 1930s British army training manual (invaluable for advice on mounted use. Airsoft cavalry anyone?) It is heavy, unergonomic and completely without styling, looks like a component for a Victorian bridge designed by Isambard Kingdom Brunel and at the same weight as the Real Steel, feels like it. As it's a warmed up 19th C design none of that is surprising.
The nasty plastic grips are the only inauthentic aspect. It has a very high bore axis even by revolver standards and seems designed for those with big hands. Ergonomics? Comfort? Foreign rot man! Buck your ideas up, what!
They are of course WW1 but were, like the 1928 Thompson, used in WW2. Would suit a Home Guard load out maybe? As would the Tommy in fact.