Terrible fit to sks - Sun Optics SKS Scope Mount/Shell Deflector

The fit to the front mount did not match up with the hole after the front sight removal. I had to drill out and re-tap in order to get the mount fitted. The bolt opening was so tight that the bolt stuck back when cocked. At this point because I had already drilled out the front of the mount I felt I could not return it so I used a dremel and widened and deepened the mount till the bolt moved freely. I still haven't fired the rifle as I just was able to get this accomplished last night.