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S&W 642 Internal Photos for Lock Removal

Discussion in 'Smith & Wesson Club' started by TedG, May 27, 2011.

  1. TedG

    TedG Infidel USA

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    I really like my 642, but I was concerned about reliablility issues after reading about instances where the internal lock jammed up and prevented firing.

    I am very familiar with the internals of a standard S&W and I've been taking them apart and doing trigger jobs for 40 years. Even with that experience, I had never taken apart a "hammerless" Smith. So, before cracking my 642 open, I researched the internet for schematics or photos.

    I couldn't find a single 442/642 picture of internals. There are plenty of standard S&W pictures, but none with an internal hammer.

    So, I went ahead and opened the 642 only to find that the insides are exactly like any hammered Smith.... except for the internal safety.

    To help anyone that finds themselves in the same boat as I was, I took some internal pictures to show what the inside of a 642 looks like.

    If you decide to deactivate the internal safety, I suggest that you review various directions on the 'net. Taking the "flag" plate out is not enough. Do your homework.

    [​IMG]

    The "flag" plate is noted with the nub that must be removed to deactivate the internal safety. After the nub is removed, the plate must be reinstalled in the pistol.

    REMEMBER.... REMOVING THE INTERNAL SAFETY RESULTS IN THE INABILITY TO LOCK THE ACTION. BE SURE YOU HAVE NO USE FOR THE INTERNAL SAFETY BEFORE REMOVING IT. IT IS BETTER TO BE SAFE THAN SORRY.
     
  2. dakotasdad

    dakotasdad

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    TedG,

    That's the exact same way I "disabled" my IL. I didn't need it so out it went.

    Good info for those so inclined to perform this procedure.
     

  3. gimme-three-steps

    gimme-three-steps

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    I know that this is a old feed-but I had to put in my 2cents.I did the same on my 642,except, I removed the complete "flag" plate unit and put a plug in the hole.

    The deactivation of the internal safety, but leaving the appearance of having a lock could be a problem (if someone think that they lock the action, but it is still hot)
     
    Last edited: Mar 19, 2017
    Chup and ithaca_deerslayer like this.
  4. shawn mccarver

    shawn mccarver

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    I prefer to just remove the entire monkey-trap. It leaves a nice little "oil application port" for that yearly drop of oil for the action. :)
     
  5. deputy tom

    deputy tom

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    Where can I get the plug? TIA. tom.
     
  6. WT

    WT Millennium Member

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    deputy tom
    After a bit of a search Jennings Machine & Tool Co. offers 'the plug' at $34.99 each with $7.15 shipping and handling.

    http://www.sightpushertool.com/

    I have not done any business with them and have no knowledge of their quality or service.
     
    deputy tom likes this.
  7. deputy tom

    deputy tom

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    Thank you. tom.
     
  8. NMPOPS

    NMPOPS

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    The OP didn't look too hard there are a couple videos on YouTube that give details on how to remove the safety. As others have said I removed it all.

    Sent from my XT1254 using Tapatalk