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chicken wings
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2,095 Posts
Discussion Starter · #1 ·
Hello,
I need a basic standard Colt thumb safety to replace the thumb safety from my Colt GCNM.

Im having issues with the safety not snapping crisply, replaced the spring and plungers. want to try safety next.

paypal ready.
 

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1911 Pistol Smith
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11,457 Posts
I'm more than happy to send you one for free, but the problem is it may not work with your current sear and hammer trajectory.. John Harrison sells a retro tooled steel parts on his website. Thumb safeties are not drop in parts. And Brownells springs for their plunger tubes are pretty weak.

https://shop.harrisoncustom.com/retro-thumb-safety
 

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chicken wings
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2,095 Posts
Discussion Starter · #7 ·
i had a similar issue on a Norinco (I know, not a Colt) and I was able to drop in a Colt take off thumb safety. Along with a spring and plunger set, it worked better. Was hoping same results here. What do you suggest?
I'm more than happy to send you one for free, but the problem is it may not work with your current sear and hammer trajectory.. John Harrison sells a retro tooled steel parts on his website. Thumb safeties are not drop in parts. And Brownells springs for their plunger tubes are pretty weak.

https://shop.harrisoncustom.com/retro-thumb-safety
 

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Consider my signature line before replying . . . .
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14,798 Posts
A complex set of geometries you are dealing with. First check safety to sear contact.
 
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1911 Pistol Smith
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11,457 Posts
i had a similar issue on a Norinco (I know, not a Colt) and I was able to drop in a Colt take off thumb safety. Along with a spring and plunger set, it worked better. Was hoping same results here. What do you suggest?
https://shop.harrisoncustom.com/retro-thumb-safety

I think Wilson Combat may have one also not certain. May be other similar tear drop TS out there, but the fact that the Norinco worked didn't necessarily mean it was 100% safe.. There are some tests you can do on fitted TS..
 

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chicken wings
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2,095 Posts
Discussion Starter · #11 ·
Any dry fire test you recommend? It fired and all that at the range but I am open to do more safety testing.
https://shop.harrisoncustom.com/retro-thumb-safety

I think Wilson Combat may have one also not certain. May be other similar tear drop TS out there, but the fact that the Norinco worked didn't necessarily mean it was 100% safe.. There are some tests you can do on fitted TS..
 

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1911 Pistol Smith
Joined
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11,457 Posts
Any dry fire test you recommend? It fired and all that at the range but I am open to do more safety testing.
On a empty chamber cock the pistol and engage the thumb safety squeeze the grip safety and pull back on the trigger as if your going to fire the pistol. Now release it. Without doing anything else release the thumbsafety. Now put your ear up really close to the hammer and pull back on the hammer slowly if you hear a slight click then that is your sear moving back into the hammer hooks. That is not supposed to happen.

Irregardless you should never put a used TS in a gun as a drop in part. If ignition parts are changed the TS should be changed. Every once in awhile you'll run across on that needs more taken off to fit the new sear, but that's hit or miss.
 

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Consider my signature line before replying . . . .
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Zoid, I could have sworn you sent me the thumb safety for my Norinco.

You could very well be correct. I have a hard time remembering my name. I would lose my ass if it weren't attached . . . . . .
 
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