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  1. 02-18-2013, 02:59 PM #1
    dondavis3's Avatar
    dondavis3
    dondavis3 is offline Senior Member
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    Ruger 22/45 - I need some info.

    I just bought a used Ruger 22/45 Target Model.

    It's in good condition, but other than the serial # on it - I have no idea if it's a Mark II or III.

    Or when was it made?

    Any advise on how to find this out.

    I want to buy a couple of mag's for it

    Do the 22/45 mags fit both Mark II & Mark III 22/45"s or are they different?

    Thank you for your help.

    8)
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  3. 02-18-2013, 09:40 PM #2
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    talldrink
    talldrink is offline Member
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    use the SN to find the year of MFG
    Ruger Instruction Manuals & Product History

    click on Pistol Instruction Manuals & Product History

    MKIII will have a loaded chamber indicator and magazine disconnect. The polymer lowers will look different from the II to the III as well.
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  4. 02-18-2013, 10:49 PM #3
    DJ Niner's Avatar
    DJ Niner
    DJ Niner is offline HGF Forum Moderator
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    The MK-III will have the loaded chamber indicator bar visible on the left side of the receiver tube (large green oval), and should be stamped MK-III (smaller green oval):





    The MK-II will not have any slot or bar visible on the left side of the receiver tube, and will be stamped similarly to the photo below (my own MK-II 22/45):




    Ruger shows a different part number for the MK-II 22/45 and MK-III 22/45 magazines, so I assume there is some kind of difference between the two models. I don't know if the mags for one would function in the other, as I have only bought/used MK-II mags for my MK-II pistol. Links to each, at Ruger's online store:

    http://shopruger.com/Mark-II-22_45-B...uctinfo/90045/

    http://shopruger.com/Mark-III-22_45-...uctinfo/90229/
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  5. 02-19-2013, 03:45 AM #4
    dondavis3's Avatar
    dondavis3
    dondavis3 is offline Senior Member
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    Thank you

    That is very helpful.

    By the way if you are interested - here's a good source on Ruger .22 information

    GunTalk-Online.com :: View topic - Ruger 22 Auto model comparison chart

    Thanks again

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  6. 02-20-2013, 06:34 AM #5
    bykerhd
    bykerhd is offline Junior Member
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    The magazines are, unfortunately, different.
    Mk II mags won't work in a Mk III.
    I haven't tried the Mk III mags in a Mk II yet.
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  7. 02-20-2013, 08:11 AM #6
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    dondavis3
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    Thank you
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