You can change the size of Crosshairs in the Counter Strike, follow the simple steps below

Go into the console (you don’t need to be the admin) and type in the ‘o’ button first then type in cl_crosshairscale 99999. This gives you a tiny crosshair making it easier to aim accurately.

Aim and shoot for the head with your new crosshair.

Note

This is not considered a cheat.

If you change any of your options even your name it will return to its current size so you will have to type the code in again.