S&W safety hammerless trouble.

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WestKentucky

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On my 32 safety hammerless that I picked up this week there was a problem with the gun. The gun had a broken internal part which I really don’t know what to call it, and the diagrams I have found don’t give an accurate picture for the 3rd model so I can’t identify it that way either, so I will describe it and hope for the best.

The part is a small part and goes inside of the top end of the trigger. It is connected to the trigger by the pin on the hand, and the part is under spring tension by the hand spring. It pushes over and has the sear engagement against the internal hammer. Perhaps it could be called the trigger sear?

If you can figure out what part I’m talking about, then I have one question about it. It is what was messed up and it cleaned up with a 5 second adjustment against the belt sander with very light pressure and a worn out fine grit belt. The part was rounded over on the sear engagement and I basically dressed that edge up so that it would catch the hammer rather than slip off or bind up. The million dollar question is whether I should go ahead and replace that part. I know it should be hardened, but with it being such a small part I’m wondering if it is a fully hardened piece or if it was case hardened. If it was case hardened I cut through that with the sander. If it’s fully hardened I’m fine, but then there’s the question of why it rounded over... seems like it wasn’t properly hard to begin with.
 
Stand back... internet expert here!

I think you're asking about part #474, the sear. I would expect this to have been casehardened (but check my credentials). If yours is toast now, you might order www.gunpartscorp.com's SKU 328690. Or try to re-harden it.

p0001.jpeg
 
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As the good Col. said probably case hardened and also probably (close to being) too short. While you have it out take several good closeup photos from several angles and make a drawing with measurements (carefully noting where you filed) so that you will be able to assess any that you find or reproduce one from scratch if needed.
 
I'd replace it.
Also check in the meantime that you didn't create a hammer that will push off when cocked (cock hammer and push on it to see if it falls) . sear engagement is something best left to guys who fully understand the workings. If the trigger feels ok and the hammer won't push off, use the gun some but order a replacement
 
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