CS:GO Weapon crosshair config:
Crosshair settings:
cl_crosshairthickness "0"
cl_crosshairstyle 4
cl_crosshairsize 4
cl_crosshaircolor 5
cl_crosshaircolor_r 255
cl_crosshaircolor_g 255
cl_crosshaircolor_b 255
cl_crosshairgap -1
cl_crosshairdot 0

Viewmodel/weapon position settings:
viewmodel_fov 90
viewmodel_offset_x 3
viewmodel_offset_y 3
viewmodel_offset_z -3
cl_bob_lower_amt 10