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Thread: Model 60 Rear Sight Dovetail Size?



  1. #1
    Tinhorn
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    Model 60 Rear Sight Dovetail Size?

    I have a '78 Glenfield Model 60 and want a replacement rear sight that is windage and elevation adjustable that won't break the bank. I really need to know what the dovetail size is for the rear sight? Anyone know?
    Team Marlin Model 60 #56
    '78 Marlin Model 60
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  2. #2
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    I think its .375, at least that's what it should be but I will double check.
    Unit505 likes this.
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  3. #3
    Tinhorn
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    Thank U!
    Team Marlin Model 60 #56
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  4. #4
    Tinhorn
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    One more question........any idea about the factory rear sight height adjustment range? I'm looking at the following...

    ScreenHunter_01 Jan. 14 19.36.jpg
    I just want an adjustable rear sight as back up to the scope. These are available in .360 & .460 heights with a .600 width from Midway.
    Team Marlin Model 60 #56
    '78 Marlin Model 60
    '88 Marlin Model 883
    2011 Marlin Model 795

  5. #5
    Marlin Marksman
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    I just put a Williams WGS rear sight in mine this week. It works well, and is very easy to adjust, via small screws. No banging on the rear sight to adjust for windage. I don't like to drift sights on firearms with aluminum receivers, unless the action is out of the stock and the barrel (not the receiver) is held tightly in a solid, padded vise. One of these days, I going to figure out how to make a portable vise to carry to the range with me.

  6. #6
    Tenderfoot
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    1968 June Glenfield Model 60

    I have a 1968 Glenfield Mod 60 that is missing the rear sight elevator.
    Customer service at Marlin was kind enough to send me a replacement elevator but it is too thick and does not fit the slot in the rear sight base. I assume there has been a change in the rear sight dimensions.

    Replacing the rear sight base with one with a wider slot to fit the new elevator I received is possible but that involves driving the old base out of the dovetail and resetting the new base and that is much more of a deal than just slipping in a new elevator.

    If I have too I can order a new sight base but am concerned that the new dimensions of the base may also include a new dimension for the dovetail.

    If the dovetail has not changed size between 1968 and present I should be ok but I don't really want to find I must mill down and re-blue the sight base (or worse find the sight base needs a smaller dovetail) I know the gun can be made serviceable with an after market sight set but those options are relatively expensive and I would much prefer to have the gun as reasonably close to original as possible.

    1. Can an old style elevator thin enough to fit the narrow elevator slot of the original base be purchased?
    2. Failing that is the dovetail dimension of the new sight base the same as it was in 1968?
    3. If answer to #2 is a no, then what are the different dovetail dimensions.. so I can tell what I may have to mill and re blue..

    (I think the new elevator I received has a curved bottom edge to help it remain vertical though I'm not sure that will prevent me from milling down both sides of the elevator to a workable thickness and re-bluing if I am not able to find a thin elevator or fit a new sight base in the present dovetail to match the new elevator thickness. Milling the dovetail out and re-bluing the barrel is absolutely not an option.)

    Aside.. why the change of dimensions on this tiny but critical part at all? (If it ain't broke don't fix it!)

  7. #7
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    3/8" dovetails
    Gary

    “Only the mountain has lived long enough to listen objectively to the howl of the wolf.” Aldo Leopold

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  8. #8
    Wrangler
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    First of all, the dovetail size has not changed; in fact it is common to probably 99% of all rifles ever made. Almost any rear sight will fit into the Marlin dovetail.

    Second, if adjustments are needed, you don't file the sides of the sight base dovetail; you carefully file the bottom, taking away only enough material to allow it to fit snugly. It should be tight, but should move when struck with a brass drift. You never, never, ever file the dovetail slot on the rifle. All adjustments are made on the insert.

    A variety of sight bases and elevators as well as fiber optic, tactical and peep sights are readily available from aftermarket sources at relatively modest prices.
    Team 60 #178
    Marlin Model 336, 30-30
    Glenfield Model 60, 22lr
    Marlin Model 795, 22lr
    Marlin Model 989M2, 22lr
    Henry Model H001, 22lr
    Savage Mod. 840 30-30
    Excel .410 SHOTGUN ca. 1925


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