The standard height of the PP700S-A's sights are not adjustable.
The polymer front sights are designed to be too high and can be filed down to the preferred hight.

The front sights come in a set of 3, so you can also experiment with the right height.

Colours
These front sights are available in 3 variants:

• Black Practical & simple.
• Rood Black base with red tip. Better contrast between front & rear sight.
• Glow in the dark Black base with GITD tip that illuminates in the dark.
  
  • Note: GITD material is not the same as tritium that illuminates without limits.
  • GITD stores energy and has to be illuminated to recharge.