Can't see sight - XS Sight Systems DXT Standard Dot Sight - AK

I attempted to the install the front sight mount on my Century Arms C39V2. The "barrel" which the front sight post is insterted required much force to mount. After insertion, I used the standard front sight adjustment tool to center the "barrel" and instert the tritium front post but it would only move so far and could not be centered. I have inserted are removed the original "barrel" from either side with minimal fifficulty.
Also the rear sight is nonadjustable