If you are interesting to build this, Things you need to build this stun gun
18650 lithium battery
TP4056 Lithium-ion 18650 Battery Charger Module
400kv High voltage generator
ON OFF Rocker Position Switch
M3 Nut and bolts
Print Settings
Printer brand: Creality
Printer: Ender 3
Rafts: No
Supports: Yes
Resolution: 200
Infill: 15
Filament brand: creality
Filament color: any
Filament material: PLA+
Credits:
DIY_ZONE