Upgrading my Shield 9mm

I am upgrading my shield 9mm with some new parts and sticking to the sw, apex, and hyve brands. But I have been thinking about the apex 3.5 connector and I am wondering if it is worth the money. My shield runs great with everything sw, but it is a little bit of a hard pull for me. I have my sights on the apex 3.5 connector. Would it be worth it or should I just stick with what is sw, and get some p2000 sights. Lmk what you think about all the apex connectors and sights.