Smith & Wesson M&P Shield (PLUS) Ledge Straight Eight Night Sight Set - Heinie Specialty Products, Inc.
Proper Sight Alignment - Heinie Specialty Products, Inc.
I like to keep it simple and robust. I have had these night sights on three Shields and they are great. The ledge design is a must for carry guns IMO, and the simplicity of the “Straight Eight” concept is all I need. They are expensive, and worth it. The tritium lamps are small, visible in low light, but they basically disappear in regular daylight, giving a crisp black sight picture without colors and big white rings that make a front sight too wide.
Other brands like Trijicon are absolutely great, but different.
I have found that large dots and colors are distracting because I focus on the target for defensive shooting, not the front (or rear) sight. My presentation aligns the sights, not colors and large sizes.
At close range (0-4 yards) I don’t need sights, just point and shoot fast.
At medium range (5-10 yards) I need them aligned adequately but not perfectly as speed is still more important than precision.
Beyond 10 yards I need more precision and can take a little more time, I figure. A wide notch rear and a slim front sight are more accurate for me.
A big, ringed, colored front sight almost filling a rear notch—sometimes set up with different outlined colors than the front, is a lot to process and demands close focus. That’s the opposite of being threat focused.
I know I will still focus primarily on the target threatening me at that 10+ yard distance rather than a little piece of metal in front of my nose. That’s just counter-intuitive to try to make your brain focus on something other than the threat. A wide notch rear and thin front sight allow me to see the target better while still allowing for sufficient precision.
But mostly now I use red dots, as they fulfill all the requirements above and more.