Thank you for this video, finding good footage of an mg42 bolt is hard. However, if you still have access to it, would you go as in depth as you can on the bolt, like upon how it works, if the rollers can actually be removed, or on how the internal bits work? I don't quite understand how the ejector is actuated. Sorry for the request, but I've got a bit of "tinker's autism" and would like to know more about this gun and bolt.