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Colt M1991A1 .45 auto.Problem.

This is a discussion on Colt M1991A1 .45 auto.Problem. within the Gunsmithing forums, part of the Firearm Forum category; I put the hammer in the safety cocked position and pull the trigger it dry fired.No I did not have a round in the pistol.None ...


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Old January 3rd, 2017, 06:22 AM   #1
 
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Colt M1991A1 .45 auto.Problem.

I put the hammer in the safety cocked position and pull the trigger it dry fired.No I did not have a round in the pistol.None of my other 1911's does that.



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Old January 3rd, 2017, 06:48 AM   #2
 
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How old is the gun? Wondering if some parts may be worn out of tolerance.
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Old January 3rd, 2017, 07:46 AM   #3
 
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check the sear engagement.
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Old January 3rd, 2017, 08:19 AM   #4
 
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Time for a good 1911 'smith!
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Old January 3rd, 2017, 01:02 PM   #5
 
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This gun needs to be examined by a qualified gunsmith. Obviously, its current condition is unsafe.

I do not know if Colt provides any warranty on guns of that era, but you could call and ask.

I would also wonder if this gun has ever had any trigger work done. Improper safety function is a common side effect of poor trigger work. If you ever had trigger work done, you might bring it back to the gunsmith and ask to have the work corrected. Or you might prefer to never bring it back to that gunsmith, and to look for another gunsmith who could fix it properly.

If you bought the gun used and do not know its whole history, then it is possible that it was worked on by someone unqualified. In that case, it would not be eligible for any warranty, and there is also a concern that the person might have made other modifications. A qualified gunsmith will be able to fix this issue and also check that the whole gun is properly in spec.

Good luck. The issue should not be too hard to fix, and that is a nice gun after this gets resolved.
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Old January 7th, 2017, 02:34 PM   #6
 
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Colt M1991A1 .45 auto.Problem.

The Series 80 hammer has a safety notch that lets it fall if you pull the hammer, unlike the Series 70 and earlier models. I suspect there is nothing wrong with it. The Series 80 is probably safer due to the firing pin safety and shorter distance the hammer falls than the half-cock Series 70 safety.


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Old January 7th, 2017, 02:38 PM   #7
 
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More info please. was the grip safety depressed? Was it at the "half-cock" position, or fully cocked? Was the slide notch safety engaged?
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Old January 7th, 2017, 08:17 PM   #8
 
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I think I got this one wrong in my previous post. I did not read carefully enough, and I thought that the OP meant that the gun could fire if the thumb safety was engaged.

Now that I have read more carefully, I believe that fn1889m has gotten this one exactly right. On a series 80 1911, the half cock notch in the hammer does not capture the sear. This is part of the design of the series 80 system, and these guns are very safe.

I still recommend that anyone who is not sure about the safety function of a gun should have it examined by a qualified expert. But in this case, the gun is probably working as it was designed to.
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Old January 7th, 2017, 11:47 PM   #9
 
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Colt M1991A1 .45 auto.Problem.

I have put a Series 80 hammer on a Series 70 type build. I think they are safe. But it does not hurt to have a used gun checked out by a professional gunsmith. (I ain't one.)


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Last edited by fn1889m; January 8th, 2017 at 09:09 AM.
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