Depends on when it was made.
This is best left to a gunsmith.
Find a good gunsmith or machinist
A firing pin that is mounted on/in a hammer
Firing Pin Block
What should Firing pin protrusion measure?
Like it says, the firing pin rotates as the action cycles.
By action of the hammer striking the firing pin, forcing it into the primer.
Firing pin is what strikes the back end of bullet igniting propellant
To check if your firing pin is missing after disassembling a firearm, first inspect the firing pin channel for any obstructions or damage. Compare the firing pin assembly with a schematic or reference guide for your specific firearm model to ensure all components are present. If the firing pin or any associated parts are absent, you may notice an incomplete assembly or unusual gaps where the firing pin should be located. Additionally, you can consult the manufacturer’s manual for detailed diagrams to confirm the presence of the firing pin.
Try e-gunparts.com
You can find a firing pin for the ranger at Numerick Gun Parts Corporation.
To change the firing pin in a Glock 22, first ensure the firearm is unloaded and safe. Remove the slide from the frame by pulling the trigger and releasing the slide lock. Then, disassemble the slide by removing the recoil spring and barrel. Finally, replace the firing pin by removing the firing pin safety and then the firing pin itself, and install the new firing pin in reverse order. Always refer to the manufacturer's manual for specific instructions and safety precautions.