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Old 06-03-2014, 12:55 AM   #1 (permalink)
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I'm afraid to ask, but how much would it cost to make a sear?

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I recently had a sear failure on my AT10. It is pot metal and the sear is attached to the hammer with a pressed in pin that will need to be machined out. Gumby has a replacement hammer assembly for $65, but he's pretty much impossible to reach lately.

Can anyone make a new sear, and how much would it cost?

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Old 06-03-2014, 12:22 PM   #2 (permalink)
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That's an interesting failure. Be sure and keep the pieces. Will a Nelson or Phantom sear work? Seems like that would be somewhat common, appearing to be a brittle fracture.
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Old 06-03-2014, 12:29 PM   #3 (permalink)
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That looks roughly like a nelson style sear. Could a already made sear out of another gun work?
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Old 06-03-2014, 01:55 PM   #4 (permalink)
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I'm not entirely sure. It is from a nelson divetrain, but I am not able to remove the sear from the hammer, so I cannot perfectly check it against my phantom.

It broke after falling onto a concrete floor (stupid gravity...)
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Old 06-03-2014, 02:05 PM   #5 (permalink)
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I would find someone with access to a waterjet and see if they would do you a favor. Should be easy enough to reverse the design into CAD if you have the broken pieces.

Edit: oops didn't read your post.

I would put that in a drill press and drill out the pin if all else fails.
Might be able to use a tiny end mill for a better cut.

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Old 06-03-2014, 02:23 PM   #6 (permalink)
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It broke after falling onto a concrete floor (stupid gravity...)
That makes sense. You can punch the roll pin out with a flat tip nail, if you have nothing else that fits. Watch out for the little spring underneath, they try to escape through the nearest wormhole.
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Old 06-03-2014, 02:55 PM   #7 (permalink)
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That makes sense. You can punch the roll pin out with a flat tip nail, if you have nothing else that fits. Watch out for the little spring underneath, they try to escape through the nearest wormhole.
The problem is that it was only drilled from one side, so the hammer needs to have a opposite-side hole drilled to allow the pin to be pressed out. I've got a dremmel, and that seems like the sort of thing free handing would be bad at.

Apparently a few hammers were machined to be serviceable, but this is not one of them.
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Old 06-03-2014, 03:01 PM   #8 (permalink)
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What about an easy out or something of the sort? It might just work if you can get it to bite good.
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Old 06-03-2014, 03:18 PM   #9 (permalink)
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If you drilled it out, you wouldn't need to go all the way through. I think an end mill would give better results, but work with what you have access to.

I think it would be cheaper to keep trying to reach Gumby and buy the replacement part(s).
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Old 06-03-2014, 03:56 PM   #10 (permalink)
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That pricetag was what I was afraid of. More expensive vs. expensive AND difficult.
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