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Thread: Springfield A1 parts?

  1. #1
    Join Date
    13th September 2007
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    Springfield A1 parts?

    Anyone? How about the internal parts ifor Springfield 1911 A1, are they interchangable with Colt etc. I am just considering to get one as stated in the previous message, and not familiar with the make. Got Colts both 70 and 80 series and a large frame Armscor, so far Ive learned that the grip safety differs with other makes but how about the other parts?
    thanks Jayspring.jpg

  2. #2
    Join Date
    31st July 2005
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    Yes the internal parts like sear, sear spring, disconnector.

  3. #3
    Join Date
    2nd June 2004
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    The firing pin is probably different. .45 ACP and 10mm use the original firing pin, .40 S&W and 9mm use a smaller one. Springfield uses a firing pin that's between the two "industry standard" sizes in all their pistols.
    Hawkmoon
    On a good day, can hit the broad side of a barn ... from the inside

  4. #4
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    20th July 2008
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    I have both Blued and Stainless SA Garrisons in 45ACP and both use the 9mm firing pins, not 45ACP pins and a very long extra strength firing pin return spring. Hard to change firing pins due to that return spring. Did a pencil test and results were not same as with normal 1911's. I decided to replace them with a SS 9MM pin and Wolf extra power return spring. IMO, Springfield did that to be able to sell the Garrisons in states that try very hard to disqualify sales of any firearms they can find a reason to fail them.
    Last edited by lashlaruhe; 1st May 2022 at 11:08.


  5. #5
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    Did you check the diameters of the tips of the SA firing pics and the replacements? Unless Springfield has changed, their firing pins are not the same as 9mm.
    Hawkmoon
    On a good day, can hit the broad side of a barn ... from the inside

  6. #6
    Join Date
    9th June 2004
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    While there is a Springfield firing pin of intermediate diameter, I have read reports of SAs with .38 and .45 diameter firing pins.

    More and more SAs have been showing up with ejectors glued in instead of pinned.

  7. #7
    Join Date
    20th July 2008
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    I used my Matoya dial caliper (checked zero adjustment first) and measured the tips both Springfield Garrison factory firing pins. Both measured on 3 tries at 0.070" which is 9MM size from Ed Brown. The factory firing pin return is about 1/4r" longer than Wolf's extra power spring. BTW, before I changed out the firing pin assembly. Also, the Springfield firing pin return spring because of ?? made it a pain to reassemble, as there were many times the pin and spring went AWOL Now all is good to go, fired around 100 rounds in both and no issues.
    Last edited by lashlaruhe; 2nd May 2022 at 13:27.


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