K9 slide stop broke.

[Sgt 127]

Annoying.

https://www.kahrtalk.com/blob:https://www.kahrtalk.com/6c7c0df5-0023-4ac7-8dee-13c27b45433chttps://www.kahrtalk.com/blob:https://www.kahrtalk.com/2efc072a-026d-4113-b4d5-b68bfb3a18b6

[zamboni]

I hi haven’t seen that one before.

[sorcerer]

You’re not supposed to be using the slide stop to pull nails.

[Bawanna]

Can't say for sure but bet if you emailed that picture to Kahr, they might just send you a new one. Can't hurt to try. I've never seen that happen before neither.

[BirdsThaWord]

Wow! First time for everything. That looks like a violent reaction.

[King Rat]

Wow! First time for everything. That looks like a violent reaction.

Sure looks like something blew up inside.

[187911]

I agree. In all 9f the decades the steel frame Kahr series have been produced, I've never seen or heard of that happening even once. It appears that some unnatural stress has been put on it.

[187911]

Sure looks like something blew up inside.

That's exactly what it mimics and looks like.

[Sgt 127]

Not at all. It was very non violent. I was shooting and it just literally, plopped on my right thumb. Never even hit the ground. I looked at it and thought “Where the hell did that come from?” I thought it was the extractor. No. Then noticed what it was.

The grain structure seems crystalline. It looks like sand. I’m thinking bad casting. It’s a one piece slide stop. MIM or investment cast, I’m sure. As I recall, my other Kahrs has the pivoting pin slide stops.

I bought the gun used. It’s an older gun. BF11XX. It hasn’t had many rounds fired through it as far as I can tell.

Should have a new one on its way. No charge.

[ttz]

Aftermarket machined pieces would be nice to replace all the stock mim parts. Even if Kahr produced and sold them.

[187911]

Aftermarket machined pieces would be nice to replace all the stock mim parts. Even if Kahr produced and sold them.

I wasn't aware that the Premium series Kahrs used MIM parts. That was only the Value series.

[topgun1953]

That happened to me a while back. Can't remember if it was on my K9 or CM45 though. Kahr sent me a new one.

[Sgt 127]

Make note. There are two slide stops. Mine is the old style. One piece. The new style have the pin as a separate piece. Apparently, not interchangeable.

[dao]

Kahr has always been very good about standing behind their products. Probably has something to do with not being a corporation that feels a need to bleed every nickel they can out of their gun owners.

[187911]

Make note. There are two slide stops. Mine is the "old" style. One piece. The new style have the pin as a separate piece. Apparently, not interchangeable.

I have both styles. They both are one piece and are very similar.

Older style on top.
https://i.imgur.com/ViT4SRJ.jpg

The 2018 K40 is on the left has the new design, and the 2014 manufacture date K40 is on the far right has the old design. The 02/2000 manufactured MK40 is in the middle has the newer design.
https://i.imgur.com/CKMCZhB.jpg

I have an MK9 manufactured in 2013 that has the slide without the "old" style. I see no rhyme or reason to it. Maybe they were producing both types at the same time up until old stock was parts were depleted. Plus, they aren't supposed to be MIM parts, but your slide stop is clearly a MIM. Is that a carbon steel frame on your K9?

[Sgt 127]

No. It’s stainless with the black finish. Whatever they were using at the time.

So, mabe there have been three versions of slide stops.

Old style. One piece. Tapered end

New style, one piece, round end. (No pic)

New style two piece (pin is separate) round end.

[Bawanna]

The style with the notch has the leaf spring on the ejection port side. The other has the little dual purpose spring right next to the lever. The one on the right has a rotating pin, not sure if that helps anything much, and theres a solid version where the pin and lever are all one piece.

[ripley16]

This thread motivated me to check my K9 (the same gun as in my avitar), slide lock part. Low and behold there appears to be a very thin hair line crack developing at the same spot OP's part broke. Wonder if it's on borrowed time.

[Sgt 127]

Mine gave zero indication. Of course, I never looked at it prior, who would think.

As I stated “annoying”. The gun still ran. Obviously didn’t lock open on the last shot. It, quite literally, just fell off during a string of fire.

But. If I were you, flex it, see if it snaps and get a new one free 😁. Or…order a spare now.

[187911]

This thread motivated me to check my K9 (the same gun as in my avitar), slide lock part. Low and behold there appears to be a very thin hair line crack developing at the same spot OP's part broke. Wonder if it's on borrowed time.

Can you share a picture?

[187911]

Mine gave zero indication. Of course, I never looked at it prior, who would think.

As I stated “annoying”. The gun still ran. Obviously didn’t lock open on the last shot. It, quite literally, just fell off during a string of fire.

But. If I were you, flex it, see if it snaps and get a new one free 😁. Or…order a spare now.

I'm going to call Kahr to inquire about what materials they're made out of. I am wondering if the two peice construction is a fix for this issue.

[ripley16]

Can you share a picture?

I tried to get a pic but the quality of the close-up was poor... all but worthless.

[kenemoore]

Since the K9 was the first Kahr model, and the slide stop is very intricate. Being a MIM part is very possible. It could be the driver for the later day slide stop design. I have a K9 and a K40 with the old style stops. The K9 has north of 10k round without an issue, guess I've been lucky.

Upon further research, I believe it is an investment casted part, still not MIM.

[rx7sig]

I, too, believed that the K9's (and the other "premium" Kahrs) are absent MIM. I'm very surprised by this! Checking the slide stop on my 2017 K9 EDC right now!

(Is there a foolproof way of determining whether a part is MIM?)

ETA: Evidently, mine is what you all are calling the "Old style. One piece. Tapered end" model.

rx7sig

[Sgt 127]

if it snaps, it was probably cast or MIM….

😁

I’m pretty sure that’s investment cast. That “seam” is pretty indicative.

From the responses, I don’t think it’s really something to worry about. Pretty fluke event.

And, as I said. It didn’t stop the gun.

[kenemoore]

I too, belief the old style slide stop is NOT MIM, but is an investment casting. Ruger has been using these for years with their revolvers, and we all know Ruger's are reliable. In fact Ruger often produces investment casting services to other firearm vendors. So...I believe you have encountered the one in a bunch casting failure. Cast not MIM. Perhaps that is why they changed, in later models. All in, I prefer the cast slide stop to the new model, because I have had that small spring to fail.

[skiflydive]

A very comprehensive piece on MIM vs cast. https://redstonemanufacturing.com/metal-injection-molding-vs-die-casting/ A long but worthwhile read.

[harrydog]

I have the old style slide stop which I think is two piece. You can see where the two pieces are attached but maybe that's some sort of casting mark?
My guess is if it is two piece, the piece that inserts into the frame is milled from bar stock tool steel and the other piece is cast or maybe MIM.

[kenemoore]

I have the old style slide stop which I think is two piece. You can see where the two pieces are attached but maybe that's some sort of casting mark?
My guess is if it is two piece, the piece that inserts into the frame is milled from bar stock tool steel and the other piece is cast or maybe MIM.

That is the new style.

[harrydog]

Interesting. Mine has the tapered end. I wonder when the transition was made to the 2-piece design?

[harrydog]

My gun appears to be the old design. Or am I wrong about that? And according to the info in this post the slide stop also looks like the old design. Are there more than two versions of the slide stop? Not that it really matters but the engineer in me really want's to know.

[187911]

Interesting. Mine has the tapered end. I wonder when the transition was made to the 2-piece design?

I don't know. My MK40 was manufactured in 2000, and it has the "new design." I have others steel frame Kahrs that were manufactured over a decade later, and they have the old design. There's no rhyme or reason to any of it other than they were producing both old and new at the same time. The newer design slide stop is at least 24 years old, so they were producing their K series with the old slide stop long after they had the design for the newer one.

[187911]

That is the new style.

IDK about that. @harrydog's slide stop is different than the new design slide stop on my MK40 and my K40.

20816

https://i.imgur.com/yCbw0Cu.jpg
2018 Kahr K40

https://i.imgur.com/BnAsIV0.jpg
2000 MK40

20817

https://i.imgur.com/gZgOH5q.jpg
2014 Kahr K40

20815
@harrydog's Kahr; His slide doesn't have the half-moon cutout that the new designer. He has the older design.

[berettabone]

I had an MK9 manufactured in 2000. It had the rotating pin.

[Sgt 127]

Kahr required the serial number to get me the new slide stop. So, apparently there is some sort of Rhyme and reason as to when they changed slide stops.

Either way. Dropped right in. No issues.

For those of us that chase trivial nuances, it is different. There are no longer casting lines that would indicate investment casting. And K9 is in the mold. And, the overall finish seems better. If I had to guess, it’s now a MIM part.

[187911]

I gues you didn't know your own strength. Try not to break the new one lol. I'm glad everything worked out for you.