Help me identify this 586 no-dash scope mount (see pics)

[Tall Pine]

I am going tomorrow morning to look at this 586 to buy, and it has a scope. But its a no-dash, which means it was not factory drilled and tapped for a scope mount. I think the factory drilled and tapped started in the dash 3 or 4 models.

My question is, can anyone tell if the use of this specific mount means that the gun has been drilled and tapped by the owner or his gunsmith, or is it possible it uses the factory holes that the rear sight uses. I dont plan to take it off before I buy it, just isn't feesible. If it looks like it was installed correctly and is sitting soundly and aligned, I will probably assume that it was installed correctly, drill holes or no.

If someone can tell me what brand of scope mount it is, I can then track down the install instructions and tell that way. Thank you for any input you can give. The scope is a Tasco red dot.

Thanks,
Tall

 

[JohnBT]

It has to be drilled. Or epoxied on or something.

If it wasn't it would have something like this Weaver 307 with the little legs on the front:



Or this B-Square Pre-93 with the set screw on the side.

 

[Tall Pine]

Thanks John. It better not be epoxied on!

 

[JohnBT]

I made that up about the epoxy.

 

[Walkalong]

I bought a 586-3 that had been drilled and tapped for a mount by the owner. The holes did not match the new factory placed holes, but they were square and straight.

As purchased.

Now.

As long as the job looks professionally done, I wouldn't let it scare me off.
.

 

[Tall Pine]

I took it home this morning. All looks well. Only concern was its cylinder gap is more open than I would have hoped for, but it didnt have any excessive rotational wiggle or end shake. Im hoping it shoots as good as it looks. Thx