Thanks. Mine aren't fiber optic. Just white dot. I'd like tritium, but the only ones I can find are those weird sights where you align the front sight on top of the rear sight like "dotting an I". Seems very weird to me.Only thing I did to mine was change grips to Lok grip G10’s and added magwell, stock fiber optic sights dead on so no reason to change, did polish some internals, been very pleased so far, and welcome from South Carolina!