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Did you ever wonder why?

This is a discussion on Did you ever wonder why? within the Handguns forums, part of the Gun Forum category; Recently I purchased a milled 1911 trigger that was made before 1943. It does not have a notch cut into the trigger stirrup. I wondered ...


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Old February 28th, 2017, 05:30 AM   #1
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Did you ever wonder why?

Recently I purchased a milled 1911 trigger that was made before 1943. It does not have a notch cut into the trigger stirrup. I wondered why after 32 years of production that this notch was added. I've heard it was to provide more clearance for the sear legs, it was done too prevent hammer drop from inserting a mag and the bow hitting the disco. Does anyone know for sure?
I'm attaching the Army drawing that shows the specs for the trigger with the notch.
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File Type: jpg Trigger Bow specs.jpg (832.2 KB, 24 views)

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Old February 28th, 2017, 05:40 AM   #2
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Sear clearance. It is interesting to note that this mod was approved a year after they switched to stamped triggers. One may have something to do with the other.

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Old February 28th, 2017, 06:16 AM   #3
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Originally Posted by KurtC View Post
Sear clearance. It is interesting to note that this mod was approved a year after they switched to stamped triggers. One may have something to do with the other.
You may be on to something there. If the pad was a little crooked you may be able to raise the stirrup. But the notch is only .009 deep.

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Old February 28th, 2017, 06:45 AM   #4
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You may be on to something there. If the pad was a little crooked you may be able to raise the stirrup. But the notch is only .009 deep.
I'm guessing there was a problem with variations in the stamped triggers. The notch was added to allow better interchangeability. (spelled that correctly on the first try )

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Old February 28th, 2017, 11:31 PM   #5
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I never knew the time frame, but the reason why was locked into my steel trap of 1911 tidbit info. I think it was a combo of bad triggers and bad disco's together that compounded the problem.

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Old March 1st, 2017, 05:34 AM   #6
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Since this is a milled trigger it seems it should be built to specs. I'm going to check it against the drawing. If it's good I'll just polish it and install it without the notch. All the ignition parts are by John Harrison so I'm sure they're in spec.

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