I sent my PO1 down to Cajun Gunworks they put on the TruGlow tfx pro sights on for me I bought at palmetto state armory for $99. That was when TruGlow just came out with the new design. You can't hardly find them anymore for under$149. Anyway I like them slot but I have the fiber optic sights they sell at their store on my Omega 75, and frankly I like the fiber optics better.