If you are looking into a 'night sight'. I HIGHLY, STRONGLY suggest you COPY the night sights of the Sig Saur pistols. They are the best night sights I have ever seen. They have no equal that I have ever seen.
Our current standard sights are the low-profile, snag-free with bright white dots. As far as night sights, we are currently looking into the paperwork required by the NRC for handling these type of nuclear materials. Night sights will be a ways out, but they will be designed to be dropped-in to existing guns.
I'm a big fan of the XS "Big Dot" sights. They are a particularly great fit for a pocket pistol b/c the only drawbacks of the big dot occur at longer ranges essentially irrelevant for a microcompact. I'd love an "imitation" of the concept.