Someone made a comment at the club the other night about how curved the trigger is. I had not really thought about it too much, but while looking at pictures of the barrel knurling length, I noticed that some models have a much straighter trigger.

I cannot see any correlation with age and trigger shape: some pre 1949 (long knurled) have the curved variant and some don't, and some post 1949 models seem equally inconsistent.

Was it just a random thing as to which trigger was fitted?