I just bought a S&W 638 bodyguard. I took it straight to range and shot a couple boxes of ammo. I really love this gun. It's going to replace my PF9 for EDC. Who else loves these guns? Any comments, things I should know? Also, Is there a way to add some sort of night sight or red dot sight? It doesn't have a removable front aperture so, what kind of paint or modification can I do to make it stand out.