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Thread: recoil spring assembly - retainer nut missing

  1. #1
    Join Date
    Jan 2018
    Posts
    7

    Default recoil spring assembly - retainer nut missing

    Background:
    I was cleaning my cm45 after shooting today and when I removed the recoil spring assembly the inner spring and rod came out of the outer sleeve. There are threads on the end of the inner rod but there is nothing to screw it into. I'm guessing the nut on the end of the rod that retained everything together fell off while I was shooting. The Kahr parts catalog says you can order the entire assembly but not that nut.

    My question:
    Is that nut even necessary?
    The gun shot fine the whole time I was shooting.
    I was surprised when the assembly came apart but it was not a big deal to reassemble the gun.

    Recoil spring assembly:
    https://shopkahrfirearmsgroup.com/pi...ly-005cm45.asp

    https://cdn8.bigcommerce.com/s-kp97p...=2&imbypass=on

  2. #2
    Join Date
    Jun 2014
    Location
    Upstate, South Carolina
    Posts
    773

    Default

    The nut is supposed to be loctited on, my PM45 lost one when it was new. I called Kahr and got a warranty replacement of the whole assembly, took about a 10 days for the replacement to arrive.

    Wyntrout made his own replacement, see this posting:

    http://www.kahrtalk.com/showthread.p...20flange%20nut
    NRA Benefactor

  3. #3
    Join Date
    Jan 2010
    Location
    Near the Gila Mountains in SW AZ.
    Posts
    4,607

    Default

    Quote Originally Posted by cm45 View Post
    Background:
    I was cleaning my cm45 after shooting today and when I removed the recoil spring assembly the inner spring and rod came out of the outer sleeve. There are threads on the end of the inner rod but there is nothing to screw it into. I'm guessing the nut on the end of the rod that retained everything together fell off while I was shooting. The Kahr parts catalog says you can order the entire assembly but not that nut.

    My question:
    Is that nut even necessary?
    The gun shot fine the whole time I was shooting.
    I was surprised when the assembly came apart but it was not a big deal to reassemble the gun.

    Recoil spring assembly:
    https://shopkahrfirearmsgroup.com/pi...ly-005cm45.asp

    https://cdn8.bigcommerce.com/s-kp97p...=2&imbypass=on
    You can make your own nut: http://www.kahrtalk.com/showthread.p...pring-assembly

    If the photos don't show for you, here they are in the order they were posted in the linked thread:






    FWIW, I can see the photos in Firefox using this add-on: https://addons.mozilla.org/en-US/fir...fixer/?src=api

    Regards,
    Greg

    Oops, I see kenemoore has already posted wyn's roll your own link...well done I say!
    [<a href=http://i43.tinypic.com/2n7fnux.gif target=_blank>http://i43.tinypic.com/2n7fnux.gif</a>

  4. #4
    Join Date
    Sep 2009
    Location
    Jacksonville, FL
    Posts
    10,702

    Default

    Thanks guys. Kahr usually will send you a replacement assembly free. They aren't supposed to come apart.
    USAF Retired '88, NRA Life Member. Wife USAF Retired '96
    Avatar: Wynn re-enlists his wife Desiree, circa 1988 Loring AFB, ME. 42nd BMW, Heavy (SAC) B-52G's
    Frédéric Bastiat’s essay, The Law: http://mises.org/books/thelaw.pdf

    Thomas Jefferson said

    “A government big enough to give you everything you want, is strong enough to take everything you have.”
    and

    "Peace is that brief glorious moment in history when everybody stands around reloading".

  5. #5
    Join Date
    Jan 2018
    Posts
    7

    Default

    So , just running it without the nut is NOT ok?

  6. #6
    Join Date
    Sep 2009
    Location
    Jacksonville, FL
    Posts
    10,702

    Default

    It's in-elegant and there's a larger opening for trash and lint to collect, and it's easier to lose the parts. I would just call customer service and see if they would replace it.
    USAF Retired '88, NRA Life Member. Wife USAF Retired '96
    Avatar: Wynn re-enlists his wife Desiree, circa 1988 Loring AFB, ME. 42nd BMW, Heavy (SAC) B-52G's
    Frédéric Bastiat’s essay, The Law: http://mises.org/books/thelaw.pdf

    Thomas Jefferson said

    “A government big enough to give you everything you want, is strong enough to take everything you have.”
    and

    "Peace is that brief glorious moment in history when everybody stands around reloading".

  7. #7
    Join Date
    Jan 2018
    Posts
    7

    Default

    OK I'll do that - thank's everybody.

  8. #8
    Join Date
    Jan 2018
    Posts
    7

    Default

    I left a message to the Tech Support/Warranty department.

    This morning they called me wanting to know the address where they should ship a new recoil spring assembly.

    No - other - questions

    That is unbelievably great customer service!

  9. #9
    Join Date
    Jun 2014
    Location
    Charlotte, NC
    Posts
    309

    Default

    Quote Originally Posted by cm45 View Post
    I left a message to the Tech Support/Warranty department.

    This morning they called me wanting to know the address where they should ship a new recoil spring assembly.

    No - other - questions

    That is unbelievably great customer service!
    Great news for you! I'm on my third assembly for my cm45. Once for the nut flying away and once for the spring working its way up through the metal sleeve part. Both incidents caused a stoppage. They're certainly aware of problems with this assembly. With that said, they've always taken care of any problem that I have had including one with a used K9. My only complaint is that I've had the problems.
    Kahr P380
    Kahr K9
    Kahr CM45
    Sig P938
    Sig P365
    1911 Stainless Range Officer 9mm
    M&P 9mm

    Topgun1953 not because I shoot well but because I fly for fun, too.

  10. #10
    Join Date
    Jan 2018
    Posts
    7

    Default

    Now that you mention the spring working through the metal sleeve and stoppage , I remember I did have a stovepipe which was the first malfunction of any kind on this gun.

    Also I noticed that taking the outer spring off the sleeve and putting it back on required more effort versus just sliding on and off, so probably the sleeve got deformed.

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