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2nd gen G20 slide on a G21?

Discussion in 'The 10 Ring' started by stevus, Dec 9, 2011.

  1. stevus

    stevus

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    I have a gen2 G20 and recently picked up a gen3 G21sf . Does anyone know if the slide and barrel from the G20 will work on the G21sf and vice versa ? What about the mags? Will the 10mm mags work in the G21sf frame?
     
  2. faawrenchbndr

    faawrenchbndr SAC trained warrior CLM

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    Yes.
    Yes.
    Yes.

    All are interchangable,........
     

  3. G36shooter

    G36shooter

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    On sthe same line I'm thinkink of useing my gen3 20 slide on my gen4 21 frame? The mags do interchange in the grip.
     
  4. stevus

    stevus

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    awesome . I thought the G21sf had some issue with older mags?
     
  5. HexHead

    HexHead

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    That's unlikely to work. The Gen4 frame is sized for the dual RSA.
     
  6. arushus

    arushus Biggest Member

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    Yes, the 21 and 20 share the exact same frame..all parts are interchangeable.
     
  7. 21Carrier

    21Carrier Until I Gota 29

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    I think it will actually work, you will just have a gap in the dust cover. I would hand-cycle it extensively to make sure there's no interference. Going the other way (Gen4 slide on Gen3 frame) won't work.