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Old 11-23-2014, 04:42 PM
Jason Epperson

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Model 12C firing pin question



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I purchased a new firing pin for my model 12c on ebay about a month ago. I just got around to installing it. The new one measures 1.854 inches long. My worn original measures 1.916 inches long. What is the deal? Does anyone have an old one they can measure or will the new one work?
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Old 11-24-2014, 10:45 AM
John Gyde
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The firing pins changed over the years. What's the serial # or mfg date of yours???
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Old 11-24-2014, 10:30 PM
Jason Epperson

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I'm not sure of the year but the serial # is 663*** range. It is a round firing pin instead of flat. Does that help any?
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Old 11-30-2014, 02:03 PM
Jason Epperson

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I was wrong on the serial number. It is 666xxx. Anyone have any ideas on this problem?
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Old 11-30-2014, 05:22 PM
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It is difficult to measure the firing pin length accurately without removing it from the bolt. I made a stab at measuring one of mine in the bolt, and it appeared to be in the 1.840" ballpark....but I have no great confidence in that being really accurate.

I assume you haven't tried the new pin yet? If not, I would try installing it in the bolt and see what happens. You can push the firing pin forward until the rear is flush with the surface of the bolt, and if it protrudes out the front enough to do the job, it might just work. I assume the old firing pin was faulty....what was the problem? One that is too short will not work...one a little too long can be shortened to fit.

Otherwise, I think I would contact some of the folks listed below and order another one....and indicate the length you need before they ship it. Giving the serial number of you gun might be useful to them also. As far as the firing pin you got from Ebay.....hard to say what it actually is.......so to speak. Could be for a Model 121?

http://gungaragegunparts.com/

http://www.jackfirstgun.com/

http://dickwilliamsgunshop.com/

http://www.gun-parts.com/index.html/

http://www.poppertsgunparts.com/index.htm

http://www.outbackgunparts.com/

http://www.ahlmans.com/

http://www.wisnersinc.com/

Good luck.
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Old 12-21-2014, 01:53 PM
Jason Epperson

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The reason I thought the firing pin needed replaced was because of light strikes. The end of the firing pin is a little tapered on the end the contacts the cartridge. I put the new pin in the bolt and it doesn't stick out near as much as the old one.
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Old 12-26-2014, 04:54 PM
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The firing pin in a 121 is completely different from the firing pin in a 12-C, and little or nothing will interchange between the two. It the firing pin looks the same as the one that's in the gun, it's a Model 12 firing pin. Now, there may be slightly different dimensions to the firning pins, depending on when the gun was made, but all Model 12 firing pins are similar.
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Old 12-26-2014, 05:17 PM
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Most model 12's had the flat firing pin. But later model guns had the round firing pin like the Model 121. The late model 12 firing pin and the Model 121 firing pin are very similar if not identical. In looking at my late model 12 and my 121, I can't tell the difference in the firing pins, but without pulling them from the bolts to measure them, I can't say they are identical - but there certainly isn't much if any difference in them. There may be enough difference in length, however, to prevent one from working properly in the other gun...I seem to have forgotten most of what I knew about that at one time.
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