Best left to a qualified gunsmith
http://www.remingtonsociety.com/rsa/service
This is best left to a gunsmith.
Try egunparts or S&W
looking for firing pin and pin spring for 1905 savage 22lr
Believe that is a Marlin 101. Contact Numrich at their website- gunpartscorp. They list that firing pin for $5 plus shipping,
No
I would try Numrich gun parts corp.they should be able to help you.
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.