Yes, you have infinitely adjustable competition sights.
Meaning you can adjust your front sight "circle" to the size of the circle of the target you're shooting on, no matter the distance or how your eye perceives the distance.
You adjust you rear sight to coordinate with the front.
Just go shoot some matches locally, and make friends with shooters there. Ask them to show you the ropes. It's nigh impossible to explain it through the written word. You won't truly understand it until you shoot it once or twice with a mentor.