Oops! Forgot to include the "C" before the seril number... that's probably important, huh? C2345XX Thanks--Tom

Welcome to the group. The only thing I can help you with is the production date...late 1976. You might check eBay, GunBrokers or a gun show sight dealer. I don't know what the front sight looks like as I don't deal with the post 1960 rifles often.

Anyone have a good photo of the sights needed?