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Page Handguns » Kahr
Posted: 8/8/2021 8:09:43 PM EDT
Installed a new recoil spring assembly (ordered from kahr) for my PM9 and noticed 2 things:

- Its now much harder to rack the slide
- I can no longer lock the slide back using the slide lock lever. It seems that the slide won't quite go back far enough to engage it. If i insert an empty mag to hold the lever up and then forcefully slam the slide back until it feels like it "bottoms out" on something, the slide will lock. If I drop the empty mag, I cant slingshot the slide back into battery. There's just no more rearward travel in the slide when its locked back.

If I pop the old spring back in everything operates normally.

Anyone ever heard of this? I haven't shot it with the new spring yet, so hoping it loosens up after a few mags.
Link Posted: 8/8/2021 8:11:47 PM EDT
[#1]
Originally Posted By RolandTommyGun:
Installed a new recoil spring assembly (ordered from kahr) for my PM9 and noticed 2 things:

- Its now much harder to rack the slide
- I can no longer lock the slide back using the slide lock lever. It seems that the slide won't quite go back far enough to engage it. If i insert an empty mag to hold the lever up and then forcefully slam the slide back until it feels like it "bottoms out" on something, the slide will lock. If I drop the empty mag, I cant slingshot the slide back into battery. There's just no more rearward travel in the slide when its locked back.

If I pop the old spring back in everything operates normally.

Anyone ever heard of this? I haven't shot it with the new spring yet, so hoping it loosens up after a few mags.
View Quote


Not to be rude, but are you sure you installed it right? Sounds like it is not.. a few extra pounds of recoil spring, correctly installed will not cause what you are describing. Not having the guide rod or spring correct would however.
Link Posted: 8/8/2021 8:13:05 PM EDT
[Last Edit: chrismartin] [#2]
Sounds like they might have sent you the wrong spring.
Probably for the one the model size up. The spring has too many coils, so when compressed it is too long.
Wouldn't be the first time someone stuck the wrong label on a product.
Link Posted: 8/9/2021 9:14:28 AM EDT
[Last Edit: RolandTommyGun] [#3]
Thanks for the replies. Here's the old spring on the left and new one on right. The old one is more compressed, as would be expected. But also it looks like the new spring has 1-2 more coils than the old one. Maybe they did send the wrong spring.

Link Posted: 8/18/2021 12:44:07 AM EDT
[#4]
Check if your barrel moves freeley
Link Posted: 8/31/2021 9:15:26 PM EDT
[#5]
Cut ONE coil of the big spring. If it like the one I bought it is 13 coils vs the 12 on the one that came in the gun. Mine would not lock back with an empty magazine and could not work slide by hand.
Link Posted: 9/18/2021 8:50:48 AM EDT
[#6]
Well I cut the recoil spring down to match the number of coils on the old one. Finally got to the range to test it and everything seems fine. Did some reading on KahrTalk forums and this isn't the first time the wrong spring was sent out.

Thanks for the help fellas.
Link Posted: 9/18/2021 6:52:16 PM EDT
[#7]
I strongly recommend ordering a new spring.

Clipping coils of recoil springs is NOT recommended, especially on these tiny guns that are already so hard on recoil springs.
You may be running a chance of a cracked or battered slide or frame.
Link Posted: 2/7/2022 8:51:20 PM EDT
[#8]
Get a screwdriver and compress the spring 10 times.
Link Posted: 2/24/2022 8:48:40 AM EDT
[#9]
Wolff gunsprings next time...
Page Handguns » Kahr
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