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Old 06-12-2018, 08:13 PM
NPV NPV is offline
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Default 640 Pro Rear Sight Help

So I picked up a 640 Pro today and after bringing it home realized the rear sight is sitting proud of the dovetail. What would be the suggested fix? Filing on the sides or just sending it back to Smith to be refitted.

My last Smith had a bent ejector rod right out of the package, I need to stick with buying older Smiths I guess.

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Old 06-17-2018, 10:46 PM
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If it were me I think I'd send it in to S&W. You could drift it out yourself and reinstall it but it looks like if it was in the correct position it would be loose in the dovetail. I can't tell with the shadow in the picture but does the dovetail look like it's cut correctlly?

Last edited by BlackTalonJHP; Yesterday at 03:09 PM.
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Old 06-17-2018, 11:29 PM
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That’s a bad job.

I suspect they’ll have to replace the gun.
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Old Yesterday, 09:21 AM
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Quote:
Originally Posted by BlackTalonJHP View Post
Also this looks like a no lock 640. If so it's not a new gun
The 640 pro is a new gun, but without the lock. I'd send it back to the factory.
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Old Yesterday, 11:14 AM
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That’s very sad. Looks like they’re not replacing cutters frequently enough.
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Old Yesterday, 02:49 PM
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Could be an out of spec sight.

I agree with sending it back, the dovetail could be shimmed but that's still not right.

Last edited by WR Moore; Yesterday at 02:50 PM.
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Old Yesterday, 08:07 PM
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Hard to tell from the pic, but the dovetail doesn't look like it is a clean cut. The edges of the female dovetail look rounded off to me. Ruger recently sent out a bunch of GP-100s with a dovetail front sight that had a very similar problem. IIRC, they said that they were 'within spec.'
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Old Yesterday, 08:55 PM
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I'm sure it's just an illusion caused by my old eyes and low resolution when it's blown up but to me it looks like the forward cut on that dovetail slot is square cut.
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Old Yesterday, 09:17 PM
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Quote:
Originally Posted by 1sailor View Post
I'm sure it's just an illusion caused by my old eyes and low resolution when it's blown up but to me it looks like the forward cut on that dovetail slot is square cut.
Does to me also. I would send it back.
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