Yeah I tried that and snapped the front sight off. Have done that successfully with several other brands but HS Produkt and S&W are notorious for their tight fit. Springfield Armory uses a hydraulic press to adjust or replace those sights.
Good luck changing sights on any HS Produkt pistols 😁. Some of the tightest fit sights there is. May have to send to someone that has the capability and right equipment.