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PM40 Wolf Recoil, Striker and Magazine Springs

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  • #1

    PM40 Wolf Recoil, Striker and Magazine Springs

    Man... I just finished changing the recoil springs (inner/outer), striker and four magazine springs on my PM40 with Wolf products. Had to disassemble the recoil assembly to change the inner spring (fairly easy), remove the rear slide plate for the striker spring (easy too), but...... changing the magazine springs honestly was a *****! Glad that's over with and I am glad I did it. The slide is firm, trigger smoother and the magazines are firmer too.

    FYI: The recoil spring is the 20.5# vs 18# standard version, striker is 5# vs 6# standard, and the magazine springs are the stronger too. Price $40 total.
    PM40... My EDC. Just Sayin'

    “Laws that forbid the carrying of arms . . . disarm only those who are neither inclined nor determined to commit crimes . . . Such laws make things worse for the assaulted and better for the assailants; they serve rather to encourage than to prevent homicides, for an unarmed man may be attacked with greater confidence than an armed man.”
    ― Thomas Jefferson, Complete Jefferson
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  • #2
    You are a glutton for punishment. How does she run with the new parts?
    Never trust anyone who doesn't trust you to own a gun.

    Life Member - NRA
    Colt Gold Cup 70 series
    Colt Woodsman
    Ruger Mark III .22-45
    Kahr CM9
    Kahr P380

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    • #3
      @muggsy... Wolf mentioned that the stronger springs would actually ease the recoil. Guess I'll find out this Friday at the range. My main hope is that all the new springs, thorough cleaning, lubing, etc... will cure the minimal ftf issue. Jocko also recommended the springs. Funny that the standard recoil springs are the same for the 9 and 40...
      PM40... My EDC. Just Sayin'

      “Laws that forbid the carrying of arms . . . disarm only those who are neither inclined nor determined to commit crimes . . . Such laws make things worse for the assaulted and better for the assailants; they serve rather to encourage than to prevent homicides, for an unarmed man may be attacked with greater confidence than an armed man.”
      ― Thomas Jefferson, Complete Jefferson

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      • #4
        Let us know how it goes with the 20.5# recoil spring. I am having trouble as I am recoil sensitive, and my PM40 is hurting my hand like H***.

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        • #5
          Originally posted by rogerthedodger View Post
          Let us know how it goes with the 20.5# recoil spring. I am having trouble as I am recoil sensitive, and my PM40 is hurting my hand like H***.
          RTD:

          I suspected this hurting hand thing with the 40S&W. Arthritis is becoming more of a problem; that is why I went with PM9.

          -steve
          -NRA Life Member

          -Pants up! Don't Loot!

          -It isn’t Islamophobia when they really ARE trying to kill you!

          -Arms discourage and keep the invader and plunderer in awe, and preserve order in the world as well as property.
          Horrid mischief would ensue were the law-abiding deprived of the use of them.
          -Thomas Paine

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          • #6
            Originally posted by sas PM9 View Post
            RTD:

            I suspected this hurting hand thing with the 40S&W. Arthritis is becoming more of a problem; that is why I went with PM9.

            -steve
            Me too, and my PM9 is my fav gun. I just thought a PM40 would be just as much fun! Ouch!

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            • #7
              indeed

              Originally posted by man1nboat View Post
              @muggsy... Wolf mentioned that the stronger springs would actually ease the recoil. Guess I'll find out this Friday at the range. My main hope is that all the new springs, thorough cleaning, lubing, etc... will cure the minimal ftf issue. Jocko also recommended the springs. Funny that the standard recoil springs are the same for the 9 and 40...
              to me never made good sense for the 40 kahrs to take thesame poundage as the 9's... but WTf do I know
              . My PM9 has over 34,000+ rounds through it, and runs much better than an illegal trying to get across our border


              NRA BENEFACTOR MEMBER


              MAY GOD BLESS MUGGSY

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              • #8
                Originally posted by rogerthedodger View Post
                Me too, and my PM9 is my fav gun. I just thought a PM40 would be just as much fun! Ouch!
                With the right ammo, your PM40 can be just as easy shooting as a 9mm.

                Most 135 grain loads reduce recoil substantially. This is my favorite:

                The reflection partially obscures "135 GR. JHP . . . Q4368". Sorry!
                It would be so nice if something made sense for a change.
                -- Alice in Lewis Carroll's Alice's Adventures in Wonderland

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                • #9
                  nice photo..
                  . My PM9 has over 34,000+ rounds through it, and runs much better than an illegal trying to get across our border


                  NRA BENEFACTOR MEMBER


                  MAY GOD BLESS MUGGSY

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                  • #10
                    Originally posted by man1nboat View Post
                    @muggsy... Wolf mentioned that the stronger springs would actually ease the recoil. Guess I'll find out this Friday at the range. My main hope is that all the new springs, thorough cleaning, lubing, etc... will cure the minimal ftf issue. Jocko also recommended the springs. Funny that the standard recoil springs are the same for the 9 and 40...
                    Wolf should be right. It's not always the cartridge that causes the sharp recoil but the slide slamming into full open (with worn springs). Stiffer springs will slow the slide enough to take off some of the sharpness. I experienced the same just installing a new factory spring in my k40. The stiffer spring also pushes the slide closed more force-ably which should help your ftf issue. Only downside is that it's even harder to rack (but easier to slingshot) Have you tried it yet?
                    ​O|||||||O

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                    • #11
                      if it doesn't tame it down enough PORT THE FOKKER and really enjoy t..
                      . My PM9 has over 34,000+ rounds through it, and runs much better than an illegal trying to get across our border


                      NRA BENEFACTOR MEMBER


                      MAY GOD BLESS MUGGSY

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                      • #12
                        My thoughts exactly... Mag-na-porting helps. And if you need some wussy range ammo, the Privi Partizan or PPU 180-gr FMJ is the lightest recoiling stuff I've run across. As I've said numerous times, after shooting the PPU, anything else is like going from .38 target loads to full-bore .357 magnums... FMJ or SD ammo.

                        Wynn
                        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".

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                        • #13
                          I added the finger rests to all my mags when they were new. I found a method that really simplified the job.

                          Take the new spring and follower and push as much of the spring up as possible into the mag...then stick a punch or something similar into the closest witness hole. This takes a great deal of tension off the mag spring. Now you are dealing with only half as much spring fighting you. After you place the end of the mag on simply pull out the punch.

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