Converting a Glock 19 to .357

Discussion in 'Firearms' started by Lomcevak Duck, Jan 7, 2011.

  1. Lomcevak Duck

    Lomcevak Duck Active Member

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    I have a Glock 19 that I use as my daily carry and I would like to get a barrel and magazines so that I can shoot .357 Sig rounds. Have any of you done this? Can I get a new barrel from Glock or do I have to go after market?

    I think the extractor for the Glock 9mm pistols is slightly different that other calibers- is this going to matter?
     
  2. rabbivj

    rabbivj My Name is Inigo Montoya

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    afaik it cant be done...you can only convert a G23 to .357 sig. you would also have to change the extractor as well.
     

  3. Phil1979

    Phil1979 Member Georgia Carry

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    Converting a G23 (.40 cal) to .357 should entail only changing out the barrel. The extractor shouldn't need to be changed, as it's still biting on the part of the case that has the same diameter.

    Note: you might need to use .357 mags as their lips are bent a little more to hold the bottlenecked cartridge better. The mags for a .40 could cause some failures to feed when using .357 sig rounds.
     
  4. ARMT Guy

    ARMT Guy Ordinary Average Guy

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    Agree.

    The conversion can't be done with the 19. Trade it in for a 23 or 32. :shattered:

    A good friend of mine has a 32 and for some reason, he actually has a little better luck running 23 mags in it. :?
     
  5. Lomcevak Duck

    Lomcevak Duck Active Member

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    Why can't it be done with a 19? I was under the impression that the only differences in the 19 and 23 are the mags, barrel, and extractor. Is there more?
     
  6. ber950

    ber950 Active Member

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    Yes the slide is different. You can't just put a stock 9mm barrel in a .40 slide. Lone Wolf and others make a "Conversion" barrel that has the exterior dimensions of a .40 but is chambered in 9mm.

    Basically to go to .357 Sig from 9mm you must change the entire upper plus you should change the ejector.
     
  7. ARMT Guy

    ARMT Guy Ordinary Average Guy

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    IIRC, the width of the breech face on a pistol slide chambered for 9mm is narrower than the breech face of a .40/.357 SIG slide.
     
  8. dcannon1

    dcannon1 New Member

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    The 32 and 23 are identical guns except for the barrel. When I had a 32 I called Glock to confirm that. FWIW I also used .40 magazines in my .357 and never had any issues.

    The 19 has has the same lower, but the barrel, slide and extractor are all different.
     
  9. Lomcevak Duck

    Lomcevak Duck Active Member

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    Ok. Toss that idea then. Thanks for the information.
     
  10. jbabbler

    jbabbler Member

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    As long as your G19 has a 3-pin frame you can put a G23/32 upper on it. You can get an entire G23 or G32 upper on Gunbroker for around $200. I paid $175 for mine with Glock night sights and put it on my G19 RTF2 frame. The only other part I changed was the Ejector ($6). The one for the 9mm is bent at the end while the 40 and 357 is straight. I sold the G19 upper on Gunbroker for $200 so I came out ahead.

    My Franken-23
    [​IMG]