Mission Probe V1 Spare Dart Points – Black. Precision Engineered Dart Points Mission Probe V1 Dart Points – Precision Engineered – Black – 36mm-X2470 – These points are a medium 32mm in length and will easily replace any existing set of steel tip darts.Mission Probe V1 Spare Dart Points – Black. Precision Engineered Dart Points Mission Probe V1 Dart Points – Precision Engineered – Black – 32mm-X2469 – These points are a short 32mm in length and will easily replace any existing set of steel tip darts.