Stevens Model 12 Marksman .22


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jaymowv
November 28, 2012, 05:17 PM
I recently picked up an old Stevens Model 12 Marksman boys .22 rifle. The firing pin is not making contact with the shell and needs replaced, along with a new firing pin pin that holds the firing pin in place. I have looked on gun parts corporation and they do not have any. But I am wondering if any of the other models of Stevens "Favorites" parts will interchange. Any help will be greatly appreciated

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camsfirie
November 29, 2012, 01:08 AM
Have a look here for the schematic:

http://www.wisnersinc.com/exploded_views/Stevens_marksman.htm

and here for the parts

http://www.wisnersinc.com/rifles/stevens/singleshotlever.html

jaymowv
November 29, 2012, 11:17 AM
Thanks for the schematic. The pin that holds the firing pin is giving me real problems locating one. It is definitely not reuse able.

dfariswheel
November 29, 2012, 08:14 PM
You should be able to use a section of drill rod for a new firing pin retaining pin.

These pins are often very tight and after many years are frozen even tighter.
To remove, use a "starter pin punch". This is just a standard punch cut off to a 1/2" working length. The shorter length prevents the punch from bending and flexing, dissipating the force.
You can also often use a nail set.
If possible, use a smaller size dead blow hammer.

Get the receiver well braced on a no move-no bounce setup on a wood block with a hole to pass the pin.
Set it up on a FIRM surface. A concrete floor works well.
If when you strike the pin the receiver moves or bounces the force is dissipated and the pin may deform, locking even tighter in place.
If needed, have a buddy help brace it in place.

"Usually" pins are driven out from the LEFT side. However, some don't.
Look at the ends of the pin for any signs the pin has locking splines on it.
Often pins have short lengthwise grooves or splines on the end of the pin to enlarge the end of the pin and hold it in place.
The pin has to be driven out from the NON-splined end.

rcmodel
November 29, 2012, 08:48 PM
Gun parts don't get any easier to make then those two right there.

You can make the firing pin and retaining pin out of old drill bit shanks with a file and an electric drill to spin them while you file them to shape.

I made them that way 50 years ago when thats the only way I had to do it.

rc

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