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Equipment & Gear => Guns and Ammo => Topic started by: fishinmike on December 09, 2011, 07:06:02 PM


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Title: 1911 Question
Post by: fishinmike on December 09, 2011, 07:06:02 PM
I recently acquired a Thompson Auto Ordinance 1911. I replaced the broken ejector but I have another issue. When the hammer is back and the thumb safety is on, the gun will still fire. Is this a Sear Spring issue, or a safety issue, or both? Any help would be appreciated. Thanks, Mike
Title: Re: 1911 Question
Post by: JackOfAllTrades on December 09, 2011, 07:19:14 PM
'Shouldn't' be the spring...

http://www.thehighroad.org/showthread.php?t=231096

-Steve
Title: Re: 1911 Question
Post by: madcow41 on December 09, 2011, 07:40:22 PM
sounds like the safety do the other two safeties work correctly? that will narrow it down
Title: Re: 1911 Question
Post by: brokenvet on December 09, 2011, 08:32:58 PM
The thumb safety is improperly installed or worn out.

A sear spring issue is that the gun will fire without depressing the grip safety.

You can buy a thumb safety form MidwayUSA, Numrich or were ever you like.  It is not a drop in part you have to fit it in.
Title: Re: 1911 Question
Post by: fishinmike on December 13, 2011, 10:01:51 AM
Thanks for the replies. I went ahead and ordered a new safety and a sear spring from the Thompson website. We will see what happens.
Title: Re: 1911 Question
Post by: brokenvet on December 13, 2011, 12:29:27 PM
You did not need a sear spring all you needed to do is to bend the right finger of the spring towards you.  But you bought it.
Title: Re: 1911 Question
Post by: JackOfAllTrades on December 13, 2011, 08:12:50 PM
You did not need a sear spring all you needed to do is to bend the right finger of the spring towards you.  But you bought it.

86% of springs will break if not bent properly.  Buying a new one was not a bad idea.

-Steve
Title: Re: 1911 Question
Post by: fishinmike on December 28, 2011, 05:54:45 PM
Ok, the thumb safety was replaced and works great. Put a new sear spring in, but the gun will still fire without the grip safety depressed. Any ideas, Thanks
Title: Re: 1911 Question
Post by: huntinguy on December 28, 2011, 06:35:07 PM
Pull it out and check it for wear.

Sounds like someone dropped this poor thing on its head:  might just want to have a smith go through the entire gun.

 :sry:
Title: Re: 1911 Question
Post by: Helix on December 28, 2011, 07:05:36 PM
what you have there is a single action only converted 1911.  lots of gues pay good money to have that done and you didn't have too.   :chuckle: Just kidding by the way. 
Title: Re: 1911 Question
Post by: fishinmike on December 28, 2011, 07:07:36 PM
what you have there is a single action only converted 1911.  lots of gues pay good money to have that done and you didn't have too.   :chuckle: Just kidding by the way.
:chuckle:
Title: Re: 1911 Question
Post by: JackOfAllTrades on December 29, 2011, 10:18:17 AM
Go back to the diagram I linked to..  Either the sear is worn/modified on the bottom, or the Grip safety is worn/modified, or the rear bar of the trigger is worn/modified. I suppose that worn pins could do the same thing too, although that is a stretch. Incorrect version of grip safety or if it is improperly fit would also allow this.

-Steve
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