The radscorpion's stinger is found at the end of its arched tail. It contains a gland for producing venom which is used to weaken and kill its prey, and is injected from the tip of the stinger.
Radscorpion stinger (1)
Nuclear material (2)
The radscorpion stinger can also be used to craft the mounted radscorpion in a player character owned settlement using the workshop. It can also be used at a chemistry station to product radscorpion venom syringe.
Found on deceased radscorpions.