Mini Drafter , Lm 358 Comparator For Sensor. , Ms Materialprojectile , Aluminum Bars For Holding The Gun , Aluminumplate For Base , Customized Input And Output Shield Pcb ,Reinforced Metal Barrel Fabrication , Polyamide Resignp84Nt Pure Copper , Igbt Skm300Gb12E4 , Capacitors 400V, 1000 Uf , Current Limiting With Diode , 32-Bitmicrocontroller Board Esp32 , 12V To 400V Booster Circuitboard , Velocity Measurement Meter , Resistance 10 K,Power Rating 2 W , Diode 10 A , Speed Measurementmodule Quantity: 227