Shawn.54, I saw this sight in one of the posts re. your 404 Jeffery threads. I suggested that you thread it now, so you could install an insert at a later time if you wanted to. The tang moves the rear sight even closer to the eye, that is why I was wondering if you ever considered it. Most guys would do just what you're doing. Tang sights are more a thing of the past and are normally used on less powerful rifles. On second thought maybe suggesting them was a "bum" idea.