Darnit, I have an extra part...

U

UncleLoodis

New member
Hello.

I stripped my S&W 686P today and as I am putting it back together, I notice an 'extra' part I had never noticed before (picture attached). Anyone know what it is and where it goes? It's a little pin, rounded on one end, flat on the other.

Thanks in advance.

Uncle Loodis[/ATTACH]
 

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Its the Hammer block.

Rides in a grove in the sideplate the oval hole goes over the protruding pin on the side of the rebound.
 
Stock pin?

ETA: On second thought, looking at the parts available online, the stock pin could be a roll pin.

Fly
 
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Sharkbite, I'm talking about the little pin I'm pointing to in the picture, not the hammer block...

Sorry, I should have been clearer.
 
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Onthefly, yes, that's what it appears to be...but I have no idea where it goes if it is. And, what's funny, the revolver seems to work without it. I'm just really hesitant to shoot it...possible KB or something. So I'm going to try to find out what it is before I go putting some hot .357 Mag loads through it. :)

It's not the pin at the bottom though...that one is still in the frame (part #35) on exploded view...
 
Mal H....that's a good thought, but that pin is already in place. And you can't tell from the drawing, but that pin is SUPER DUPER small. I scrolled through the items below the drawing...still couldn't find anything that matched. :(
 
They used to put those inside the rebound spring. I don't know if it kept the spring from binding up- or if it was meant to prevent over travel. Either way, just put it in the rebound spring and tell everyone you're a trained professional.
 
It's the internal trigger stop and goes inside the rebound slide. Re-installing it is optional. I'm not convinced it actually does anything.
 
10-96, and MrBorland, that must be it. I installed the pin in the rebound slide spring, and it fits, and everything works. YAY!!!! :D

As always, thanks to everyone who replied. You guys are rockstars! I have ALWAYS had lots of kind people reply when I need help. I try to do the same; that's what makes the world go round.

You all have a wonderful weekend, ok? I know I will--I'll be at the range tomorrow, shooting some steel with my 686P. ;)

U.L.
 
I was wondering if someone was messing with you,,,

Way back in time I was a seismic specialist in the Air Force,,,
I repaired very intricate seismic instruments.

One time I had a TI 18300 torn down on the bench,,,
After I reassembled it I had a tiny part left over,,,
I couldn't find it in the schematics at all.

I took the instrument down and reassembled twice,,,
Them my supervisor broke down and saved me.

My co-workers laid an extra flexure pin in my parts tray. :o

Aarond

.
 
FBI armorers school. Favorite trick. Palm a small part from a Colt. Wander by your buddy to see how he's doing on the Smith he's working on. Casually lay the piece down near the edge of his workmat. Behind a screwdriver. Whatever. Walk off.
 
That part stops trigger backlash, aka overtravel. It replaced a rather complex setup which used a separate part, a slot in the frame, and a small screw to do the same thing. In target shooting, trigger overtravel, that is, trigger movement past the point of hammer release, can be bad for trigger control and damaging to accuracy. You might or might not notice the difference without it, depending on how sensitive you are to trigger issues. There is no safety issue involved.

Another "spare part" story. An electronic tech repaired and reassembled a complex piece of equipment, and found a tiny screw left over. After triple checking, and a couple of hours of worry, he bent closer for a better look. And his glasses fell off. The screw was the one holding the temple (ear piece) to the frame.

Jim
 
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What is strange is this... notice the hammer block.

It looks like the old design they used in the 1905 model! Yes they changed the hammer block to instead of moving up and down to block the hammer it flips out like the 1905 S&W!

As for the pin, could it be a trigger stop pin that fits INSIDE the rebound slide?

And yes, like James said above. Cheap fix to the old trigger stop. I've taken them out of S&Ws I used for defense since I didn't want a part that kept the trigger from going all the way to the frame when I fired.

Deaf
 
The hammer block is the same as it has been; they changed the milling of the sideplate, but I am not sure why. But the hammer block fits over the lug on the rebound slide and rides up and down as it has done since c. 1945. (The new rebound slide is MIM and has the lug built in rather than being a separate pin, another time and cost saving change with no change in function.

Jim
 
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