Making a smith 940.

Making a smith 940.

This is a discussion on Making a smith 940. within the Defensive Carry Guns forums, part of the Defensive Carry Discussions category; I was just thinking of getting a 640 pro and buying a 9mm cylinder so I have two calibers. I can carry it as back ...

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  • 2 Post By gasmitty

Thread: Making a smith 940.

  1. #1
    Member Array MPA249's Avatar
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    Jan 2007

    Making a smith 940.

    I was just thinking of getting a 640 pro and buying a 9mm cylinder so I have two calibers. I can carry it as back up to my glock using 9mm ammo or my Smith Model 19 with 38 spl +P if I want. Could it be that easy? If not a pro then a 640 with a new springs, cylinder smithed to take full moon clips (80.00) and a trijicon front sight (80.00). Ideas?

  2. #2
    Senior Moderator
    Array gasmitty's Avatar
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    Jun 2007
    Gilbert, AZ
    Why bother? Seems lot a lot of work and expense (cylinders generally need to be fitted) for a questionable advantage.
    glockman10mm and msgt/ret like this.
    NRA Endowment Member
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  3. #3
    Distinguished Member Array WC145's Avatar
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    Sep 2008
    Downeast Maine
    The 640 Pro uses a j magnum frame, a 940 cylinder won't work. Also, it's almost impossible to find 940 cylinders these days. Numrich had some a few years ago but sold out of them a long time ago. Pretty much your only option would be to have a 640 cylinder rechambered, check Pinnacle High Performance Custom Gunsmithing. Mark did a 360J for me a few years ago, I've been very happy with it.
    "If violent crime is to be curbed, it is only the intended victim who can do it. The felon does not fear the police, and he fears neither judge or jury. Therefore what he must be taught to fear is his victim." - LtCol Jeff Cooper

  4. #4
    Member Array jimmr's Avatar
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    Oct 2012
    upstate NYS
    My son had a conversion done to limit the number of calibers he has to have on hand for his go to guns. Loves it!

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