A firing pin that is mounted on/in a hammer
By action of the hammer striking the firing pin, forcing it into the primer.
Firing Pin Block
Typically, the hammer strikes the firing pin which may fire a round, if there is a fresh round in the chamber. In older pistols, the hammer can hit the primer directly (the tip of the hammer has the firing pin on the end).
, I have owned both; they are really equal, in terms of function. Some people prefer the older Smiths with the forged hammer and trigger and the firing pin mounted on the hammer nose; those same people don't seem to like the MIM (metal injection molding) parts on the newer Smiths. However, I believe both are fine and will give you a lifetime of service. I don't like the external, key-operated lock; but that is just a personal preference. I tend to like any Smith that doesn't have the external lock. Jim
firing pin block
hammer is spring pushed and hits the firing pin to fire the cartridge.
The hammer is the part that hits the firing pin when you pull the trigger.. this is just an educated guess...
There is usually a screw on the top of the receiver in front of the hammer or a pin through the side of the receiver holding the firing pin in.
yes
You activate the trigger, the hammer or striker hits the firing pin, the firing pin strikes the primer in the cartridge, which ignites the powder charge in the case.
Blocks the hammer from hitting the firing pin.
Both parts perform a similar function by hitting the primer and causing it to ignite the powder charge in the cartridge. However, they operate differently. A firing pin is driven forward by a blow from a hammer (or similar part in the firearm) which is, in turn, powered by a spring. A striker is driven forward by direct spring force, not by a blow from a hammer. In effect, it plays the part of both hammer and firing pin.