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Glock 20?

dav1965
I was wondering how many different barrels i can put on this gun with just changing mags and barrel. I know about 9mm. What else?
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Comments

6 comments

Date Votes
  • NeoBlackdog
    Lonewolf makes barrels for the 20 in 40 S&W, 357 Sig, and 9x25.
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  • CS8161
    9mm???
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  • tsr1965
    The only two magazines that will fit this gun are the model 20(10mm), and the model 21(45 ACP) magazines. I highly doubt that a 9mm will feed from an unmodified 20 magazine. I do know of a member who loads 40 S&W in a 20 magazine, with no problems. I do beieve that the 9mm will extract and eject from the 40 S&W/10mm breechface/extractor. You will also have to change the recoil spring, as the 10mm could be a little strong for the 40 S&W, or 45 ACP, depending on the loads. I am not 100% sure the 45 ACP barrel will fit in the 20 slide either.

    That said, looks like you are stuck with 40 S&W, 10mm, and 45 ACP, unless you can find magazines that are modified for this purpose.

    Best
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  • rufe-snow
    Years ago I bought one of the 357 SIG barrels for the G 20, from Lone Wolf. It had headspace problems, causing the fired brass to be unloadable. I returned it to LW and they sent me another one. Same problem occurred, so they refunded my money.

    If you reload and buy one of the 357 SIG barrels, check the brass for incipient failure, (stretch marks), before reloading.
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  • rsnyder55
    I have a 20C and using the same magazine, but different barrels, I shoot 10MM, 40S&W, and 357Sig. I've not problems with my Lone Wolf barrels and have also purchased an unported 10mm barrel.

    Any more, I primarily shoot 357Sig.
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  • bambihunter
    +1
    Plus you can also get a GI .50 and .45 barrel (but why would you when you have a 10mm?)
    quote:Originally posted by NeoBlackdog
    Lonewolf makes barrels for the 20 in 40 S&W, 357 Sig, and 9x25.
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