Bulged/Swollen Frame?

[ripley16]

Wonder if all Kahr's polymer models has the same bulge? Will be interesting to compare.

My TP9 has a slight bulge...maybe the short barrel length accentuates it on the PM, and it lessens visually as the barrel length increases.

[jocko]

It is

Wonder if all Kahr's polymer models has the same bulge? Will be interesting to compare.

there by design, not having every different model of polymer kahrs in front of me a good question but I would say it is in all of them..

[Grabe]

Bulge Issue

It would seem possible that the bulge in the frame would eventually get wide enough to cause the slide grooves to not seat with the frame rails.

Seems like that might cause permanent failure! Any thoughts?

[jocko]

those long frame rails inside the polymer dust cover are of one peace, not two peaces, that is also why that front section is so strong also. It is not a buldge, as the frame rails are parallel It is there by design, for reasons I know not why and it looks worse when photos with\ the slide off, but with the slide on, it to me seems to want to also keep any fingers with interfering with slide retraction.

[jocko]

I've

It would seem possible that the bulge in the frame would eventually get wide enough to cause the slide grooves to not seat with the frame rails.

Seems like that might cause permanent failure! Any thoughts?

got 25,000+ rounds out of my PM9 and no failure, actually I have never ever read of any polymer kahr failing in that area, nor have I ever read of even those steels frame rails ever braking or cracking or the polymer ever pulling away from the one peace frame rails.

I think one can google up kahrs 6 patents on their guns and see the one peace diagram of the front rail and get a better understanding of the process of molding the all steel rail inside the polymer dust cover... the back one peace steel slide rail is also molded inside the polymer grip also and actually carrys most of the burden of proper slide functioning... Pretty well thought out gun IMO, course I realize Jim K feels other wise..:7:

[Grabe]

Bulge

Jocko, great clarification and comforting explanation of Kahr solid construction. This should remove concern regarding the polymer frame expanding under normal little lone heavy use. Thanks,

[texsky]

It seem that we all have the bulge but none of the Kahr marketing pictures show it.

[fitzgood]

I have a very new PM9 Black Diamond IB49XX and I can say for 100% sure that it had that bulge (couldn't we call it something else) since brand new. My FFL has Kahrs and he pointed it out to me when we cleaned and oiled it before it was ever fired. He said that every ploy Kahr has that and that it is normal.

[armoredsaint]

i'm new to kahr's, but with a bulge like that i would be a little concerned. can you send it in to be replaced?

[jocko]

yup

i'm new to kahr's, but with a bulge like that i would be a little concerned. can you send it in to be replaced?

ur new to this forum, it is there by design no bulge, if you looks that those two inisde steel rails up in the dust cover, you will see that they are exactly parallel to each other. Why that little buldge (for lack of a better term) area is there is built into the initial molding of the lower frame with the one peace front steel rail.

My guess and it is just a SWAG (scientific wild ass guess) is that it is there to keep ones hands in two hand shooting from maybe coming into contact with the slide etc, amd maybe slowing down retraction. If only one kahr had that, I would be concerned but I know for sure it is on every PM series kahrs.....

[kpm9]

Yeah, it's only the polymer on mine. I measured the rails with my calipers and the rails a parallel as Jocko mentioned.