Info on 1903a4 scope

[SF180A]

I am looking at having a 1903a4 clone built with a weaver 330 scope. What rings do I need to get for use with that scope? 3/4" or 7/8"?

[k arga]

3/4 is what you.

[Sunray]

3/4" rings made to go on the Redfield base.
These guys carry the rings and bases. http://www.rsmscope.com/index.php/usa-1903-series.html

[SF180A]

Thanks guys. I knew this was the place to come.