Originally Posted by super_stanchy
no detent at all
I'm still thinking it's a custom one-off, but it might be worth looking into seeing if it's a Rudy Dean without the typical low pressure chamber up front. They are the only modern cockers I can think of that were sold without any sort of ball detent - Rudy intended them to be underbored enough that they couldn't double feed.
From what I can remember all of his bodies took angel threaded feednecks though, so that may rule this one out.
Like I said, probably a unique custom gun. Either way it looks nice!