Cynthia,
I understand the money and desire issue. For the most part, I agree with Matt85, but if it is what your rifle came with, and especially in these times, it can be hard to justify spending more money to replace the sights, especially since I'm betting that the fiberoptics work just fine. I have traditional fixed on all mine, but they didn't all come that way, and had to be changed over as funds allowed. Having said that, not everyone on this site has 20/20 vision, and I would much rather see someone use fiber optics than mount a scope, or even worse, leave us and go with a in^&*( or modern gun instead. Almost all of us will see our vision go downhill as we age, so I won't jump down anyone's throat for fiber optics without knowing their situation. At least the man is sticking with a traditional gun and that deserves a :hatsoff: in my book. But back to the original question, I can't help with what size the rods are supposed to be.