Red dots don't fix what you haven't earned yet
I see the same thread every month. Kid asks about getting a dot on his carry gun, posts a picture of a stock 509 or M&P, admits he's doing dry-fire in his garage twice a week.
Stop.
You can't deploy from concealment in under two seconds. I know because you're asking about optics instead of stroke work. If you could do it, you wouldn't need the dot yet—you'd already know what your actual problem is.
Red dots solve problems you don't have. They create problems you do.
A dot makes your front sight press sloppy because you can chase the dot instead of running the trigger correctly. Dot makes you blink on the break because you're watching glass instead of breaking the shot. Dot makes you dependent on battery state and glass cleanliness, and worst of all, it lets you think you're training when you're actually just buying expensive confirmation bias.
Fundamentals first means: draw stroke, grip consistency, press repeatability. Means 500 dry-fire reps a week for three months, not red-dot YouTube deep dives. Means five thousand rounds through an iron-sighted gun before you earn the right to ask whether glass is actually an upgrade for you.
Then—*then*—if you've actually got the seat time and your draw is subsecond-reliable, come back. We can talk dots. Until then, you're not ready for that conversation. You're ready for the work nobody wants to do.
Do the work first.