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Thread: Wolff guide rod kit for MK9/40

  1. #1

    Default Wolff guide rod kit for MK9/40

    I've been happy as could be with my new/old MK9 purchase except one thing. The captured guide rod spring and guide rod tended to either protrude a bit and be off putting or felt a little mushy returning to battery like there was a bit of friction. Also, it has been a PIMA to reinstall the little bugger.


    So, I decided to pick up the the Wolff MK9/40 recoil spring and guide rod kit. BEST DANGED THING I COULD HAVE DONE. No more hitch, no more protrusion and now easy as pie to reinstall. Here's a few dirty pics.













    I had thought about installing a set of adjustable sights, but she shoots too good. They'll go on my p45 instead.

  2. #2
    Join Date
    Apr 2013
    Location
    Wisconsin
    Posts
    4,243

    Default

    Been running that since mine was new. Still have the original spring and rod. Never an issue.

  3. #3
    Join Date
    Oct 2013
    Posts
    156

    Default

    Could not agree more. The Wolff guide rod works great and looks better than the plastic captured rod. The only thing I did was to remove the black finish so it matched the stainless finish.
    USN ~ Retired

  4. #4
    Join Date
    Jun 2011
    Location
    The Free Zone
    Posts
    5,264

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    I'm running one in my MK40 Elite as well.
    Good Stuff

  5. #5
    Join Date
    Feb 2010
    Location
    North Central Washington
    Posts
    2,438

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    Put me in the same group. I think captured springs are over rated. It isn't hard to assemble the pistol and works great.
    Aftermarket accessories for Kahr Pistols at https://lakelinellc.com/
    There are always more in the pipeline...

  6. #6
    Join Date
    Jul 2013
    Posts
    15

    Default

    Indeed. Love that guide rod too. Makes a huge difference in confidence and reliability of the gun when it is not used extensively as well.

  7. #7
    Join Date
    Nov 2017
    Location
    N/E Fl
    Posts
    35

    Default

    I want to install a Wolff guide & spring, but Iím not sure what #spring to put in my MK40! Any help with this would be appreciated. Thanks ,Sears

  8. #8
    Join Date
    Jan 2010
    Location
    Near the Gila Mountains in SW AZ.
    Posts
    4,631

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    Quote Originally Posted by SKSears View Post
    I want to install a Wolff guide & spring, but Iím not sure what #spring to put in my MK40! Any help with this would be appreciated. Thanks ,Sears
    Wolff has 20.5# listed as "Factory Standard" for MK9/40 springs.
    https://www.gunsprings.com/index.cfm...s&cID=1&mID=29
    Regards,
    Greg
    [<a href=http://i43.tinypic.com/2n7fnux.gif target=_blank>http://i43.tinypic.com/2n7fnux.gif</a>

  9. #9
    Join Date
    Jun 2014
    Location
    Austin, Texas
    Posts
    882

    Default

    How is the reliability before and after?

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