where can I get a barrel pin ( for pinned barrel )for pencil barrel model 64? Thank You.

You will probably have to make one.
Find the size drill bit that fits snug, then cut the shank off, cut to length and round over the ends. Keep it oiled and it will look like stainless.
To round over the ends, I chuck the pin in a drill and use a scrap stone.

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Chris
SWCA #2243 SWHF #292

is there any way to get a standard part? What exactly is the pin for? Revolver I am looking it is missing a pin on the right side. I guess it broke somehow, because on the left , I can see a pin.

It's to keep the barrel from turning.

This is a blued part from Numrich:

Barrel Pin | Gun Parts Corp.

You'll have to search to see if the stainless part is in stock.

Theoretically the pin keeps the barrel from rotating, but the threads keep it pretty tightly in place so I suspect it was more a bit of overengineering on the factory's part.

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Alan
SWCA LM 2023, SWHF 220

Thank You. Worst case scenario, I just use blue pin, but will try to find stainless.

If for some reason you can't find one you can use a piece of Drill Rod of the appropriate size and diameter. Round the ends after cutting to the proper size, polish with Flitz Poiish and a Dremel or buffing wheel and install.

S&W will likely send you one for free.

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Jim
S&WCA #819

Maybe the pin is just punched through a little too far one way,,poking out too
far on the left side left side,,,the other end of it it hiding down inside the hole on the right side of the frame.

Other than that, a broken off pin would be a rarity. It would have either been a too short of a pin in the first place that was inserted,,something I can't really see the factory doing.
Or for some reason someone aftermarket removed the factory pin and then re-inserted a short pin (lost the orig?)

But to break it off in there is near impossible. Carefull punching it back out as it may be worked over already in attempts to move it. That can peen the end and 'rivet' the pin into place.
Easy does it,,it'll probably come right out.
But don't 'use a bigger hammer' if it doesn't move right away!

If you are unable to locate one through vendors or S&W, I have one I can send you if necessary.

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Ret. LE, FA Instr, S&W Armorer