"5 Small Dots" on Kahr K9 Slide................ ? ? ?

[Old No7]

I just gave the new-to-me Kahr K9 I got recently a thorough cleaning... It shot fine when I put 50 rounds through it, but the striker channel was filthy and had some metal shavings in it -- many more than I'd want in there too, so I am glad it's clean now.

For the life of me, despite all the prior Kahr's I've owned (PM9, P40 Covert and P9 Covert), I don't ever recall seeing what this pattern of "5 Dots" on the bottom of the slide, just forward of the ejection port mean...

http://www.hunt101.com/data/500/Kahr_K9_Slide_-_5_Dots.jpg

Any ideas ? ? ?

Oh, and please don't tell me that it went back to Kahr 5 times.............. (Or if so, was it "Inspected by Gunsmith No 5"???)

The gun shoots GREAT and carries really well, and I can't find anything wrong with it. Not that I am "looking" for a problem, but those dots do have me curious...

Thanks!

Old No7

[Bawanna]

Never seen that before but I'll see if I can find out. Maybe someone else here has seen it?

[Ikeo74]

I wouldn't worry about it. It is not affecting any function, can't be seen on the outside of the gun when assembled, it looks random and it is probably just a tool mark left there during the building of the slide. Don't sweat the small stuff. There are enough other problems to worry about.

[Ed M]

Looks like a No7

Destiny....... ;)

[Old No7]

Looks like a No7

Destiny....... ;)
LOL, now that's too funny!

Just thought of this -- maybe it's the marks from some type of "Hardness Test" or something like that. I think I've seen posts about similar marks in some SIGs, if I recall.

Old No7

[berettabone]

I have 5 larger one's on another non Kahr firearm..........................don't know??????????????????

[Old No7]

I Just checked and found this info over on SIG Talk, with images of small dimples that look very similar to mine -- only I have 4 more -- it's a Kahr, after all.

"A Brinell hardness test uses a spherical-shaped penetrator to make the indentation. This type of hardness test makes a shallow concave dent in the surface of the item under test.

A Rockwell A, C, or D hardness test uses a conical penetrator to make the indentation. This type of test makes marks comparable to what a center punch leaves."

Old No7

[Bawanna]

My confidential source says hardness testing marks. No secret pattern or anything.

[Old No7]

Thanks Bawanna -- mystery solved.

Old No7

[downtownv]

I had heard that Kahr had a contest that the owner of the mystery dots would be the winner!