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Does Glock 19 Gen 4 slide work with Gen 3?

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  • fifteen
    Member
    • Jan 2016
    • 411

    Does Glock 19 Gen 4 slide work with Gen 3?

    I want to get a Trijicon RMR on my Glock 19 Gen 3. Is buying a Gen 4 OEM slide the best way to do it?
  • #2
    Quiet
    retired Goon
    • Mar 2007
    • 30242

    Originally posted by fifteen
    I want to get a Trijicon RMR on my Glock 19 Gen 3. Is buying a Gen 4 OEM slide the best way to do it?
    Short answer = Nope.

    Simplified answer...
    The Gen 4-5 Glocks utilizes a bigger recoil spring assembly which changes the dimensions of the slide's interior which makes them incompatible with the Gen 1-3 Glocks.
    ^Some aftermarket vendors are now selling an adapter to make it work. But, it reduces the reliability of the pistol.

    Gen 4 slide on Gen 3 frame
    Last edited by Quiet; 06-21-2019, 3:56 PM.
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    "If someone has a gun and is trying to kill you, it would be reasonable to shoot back with your own gun." - Dalai Lama (Seattle Times, 05-15-2001).

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    • #3
      Quiet
      retired Goon
      • Mar 2007
      • 30242

      There are aftermarket Gen 1-3 slides that are made for microdot sights.

      Examples...

      Unity Tactical ATOM series for Glock 19 Gen 3


      Lone Wolf Dist Alpha Wolf RMR series for Glock 19 Gen 3
      Last edited by Quiet; 06-21-2019, 4:01 PM.
      sigpic

      "If someone has a gun and is trying to kill you, it would be reasonable to shoot back with your own gun." - Dalai Lama (Seattle Times, 05-15-2001).

      Comment

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