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S&W Revolvers: 1980 to the Present All NON-PINNED Barrels, the L-Frames, and the New Era Revolvers


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  #1  
Old 05-25-2018, 07:01 PM
kbm6893 kbm6893 is offline
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Default Removing Sideplate on 640

I owned a 640 long ago and never removed it. I just got a nice one on gunbroker and notice there is a pin on both sides of the frame right behind the cylinder. I’ve taken the sideplate off every used revolver I have ever owned. Never an issue. What is that pin for and does it make removing the sideplate an issue? All I ever do it blast out with brake cleaner, hose out with compressed air and very lightly lube.

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Old 05-25-2018, 07:46 PM
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Kernel Crittenden Kernel Crittenden is offline
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I think it retains the frame mounted firing pin. Is it in-line with about where you suppose the firing pin would be?
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Old 05-25-2018, 08:06 PM
kbm6893 kbm6893 is offline
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I think it retains the frame mounted firing pin. Is it in-line with about where you suppose the firing pin would be?
Yep. Just want to make sure popping the plate isn’t a problem. Hammer block always falls out and that’s it on my other revolvers.
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Old 05-25-2018, 08:23 PM
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Kernel Crittenden Kernel Crittenden is offline
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It ain't going anywhere. If you want to remove the firing pin you have to drive out that frame pin with a properly sized punch. (Hint: a 1/16 punch is just a hair too large).
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Old 05-25-2018, 10:08 PM
adwjc adwjc is offline
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Yep. Just want to make sure popping the plate isn’t a problem. Hammer block always falls out and that’s it on my other revolvers.
No hammer block to worry about on that Centennial.

Funny, I just picked up one with a BKF serial# last Saturday.
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Old 05-26-2018, 06:53 AM
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OLDSTER OLDSTER is offline
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I think it retains the frame mounted firing pin. Is it in-line with about where you suppose the firing pin would be?
Yep. Don't lose that pin
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