I don't think it's reproduction but it does look unissued and it may not necessarily be British. It seemed excessively loose for a 1907 scabbard and that is why I questioned that application. I can't think of a bayonet, used during or since WW2, that has a scabbard with a larger girth than the 1907 scabbard and which I also have an example of to try in the frog but I am open to suggestions.