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  1. #1
    Contributing Member frankderrico's Avatar
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    WW2 Carbine Late Features

    Saw this on another forum and thought it was interesting enough to share. Thoughts?


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    Advisory Panel browningautorifle's Avatar
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    So, about 44/45? Flat slider sling on the M1icon rifle...cold weather and full combat load make it probably time of Ardennes/Hurtgen? Maybe the spring after all that? Carbine still has the other early features but the rear sight changed as ordered...?
    Regards, Jim

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    Contributing Member frankderrico's Avatar
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    Thread Starter
    Hi Jim, caption said April '45 Germanyicon. Carbine also has low wood stock and type two barrel band. I think issued that way. Soldier with the rifle, is that a grenade launcher? Looks like he has the spoon on his frag taped. Man with carbine does not.
    Last edited by frankderrico; 11-21-2020 at 03:04 PM.

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    Type 4 TH on the carbine?

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    Seen that pic this morning while looking for something else.
    Good Pic.
    Charlie-Painter777

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    Really Senior Member martin08's Avatar
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    Here are the rear sight field upgrade instructions, which could have been happening in theater, April 1945.


    SECTION Vm. REAR SIGHT ASSEMBLY

    GENERAL

    Carbines of early manufacture were equipped
    with an "L" type (leaf type) rear sight (Fig. 66)
    composed of two integral leaves set at right angles
    to each other. By Modification Work Order ORD
    B28-W3 this sight is replaced by the adjustable rear
    sight. All. carbines of later manufacture are e-
    quipped with adjustable rear sight 6573955 or
    7160060 (Fig. 67), which differ only in method of
    manufacture. Sight 6573955 is a machined type,
    and sight 7160060 is a stamped type. The function
    and operation of both sights are identical.



    DISASSEMBLY (FIELD MAINTENANCE)

    a. Scribe a mark on the receiver directly
    opposite line on sight base for sight assembly
    6573955 (machined type) and in the receiver
    directly opposite mark on zero sight plate for
    sight assembly 7160060 (stamped type). This is
    necessary for proper alignment in assembly.

    b. Place adjustable rear sight assembling
    tool 7312068 on the receiver with the lip of the
    tool riding on the operating slide guideway in the
    receiver. If the sight is of the stamped type, insert
    spacer (Fig. 69) (hanging at end of chain on tool)
    in place to prevent distortion of sight base wings.
    With the right hand jack screw retracted to the



    extreme position and out of the way, slide the tool
    over the sight (Fig. 68).

    c. Push guide of tool (sliding member to
    which chain is attached), so that inside end rests on
    side wing of sight base, fit recess of connector over
    outside end of guide and tighten left hand jack
    screw. As pressure is applied, tap connector with a
    brass hammer and take up slack with jack screw
    until sight is removed.

    INSPECTION

    o. Check sight base for looseness and sides of
    base will not be bent or distorted; damage of this
    nature may be caused by assembling and disas-
    sembling. Check ramp for worn or burred guide-
    ways and index ball retention notches on the floor
    of the sight ramp .

    b. Check windage screw for wear of threads,
    burrs, security and staking, and check windage
    screw knob for wom knurling. The windage knob
    must be free enough for hand operation, move
    with distinct clicks, and retain its setting. It should
    be possible to move the ramp to extreme limit on
    either side without objectionable binding. With
    ramp centered in sight base, press windage knob
    to left and release to test spring action of index
    ball on knob. There should be merely lateral
    movement of the knob due to pressure and index
    spring action. When released, there should be
    clearance between inner face of knob and sight
    base.

    c. With ramp centered in sight base, attempt
    to move lower end of ramp from side to side.


    Figure 66. L-type (leaf type) rear sight assembly



    There should be practically no lateral movement.
    If movement is present, it indicates worn threads
    on either windage screw, ramp, or both. Press
    rear end of ramp down and release to check spring
    action of ramp guide plunger.

    d, Move aperture slide up and down full
    length of ramp. Slide should move freely but with
    distinct clicks and be positively retained at each
    sight setting. The slide should be stopped at the
    front (lower) end of the ramp and at the rear
    (top). There should be no undue looseness of the
    aperture slide in the ramp guideways. Inspect peep
    hole for absence of shine and foreign matter.

    ' e. On the stamped type sight, the index plate
    should be so positioned that the index line is
    in the approximate center of the base. (In other
    words, the index plate must not be rotated to one...


    Figure 67. Adjustable rear sight assembly for

    M1.M1A1icon and M2 carbines.


    Figure 68. Removing adjustable rear sight.

    ....side or the other on its pivot because the full
    range of adjustment of the plate is intended for
    the user of the weapon.) The rivet should be tight
    enough to retain the plate firmly in its set position.
    / On the machined type sight, the index
    plate should be positioned approximately in the
    center of the ramp and the screw must be tight
    enough to retain the plate firmly in that position.

    g. After targeting (DEPOT MAINTENANCE
    ONLY) and adjustment of the rear sight on the
    receiver, check to assure that the overhang of the
    rear sight base does not exceed the following

    limits: m

    (1) The right-hand side of the sight base
    should not be pushed to the left be-
    yond the point where it is flush with
    the side of the dovetail on the re-
    ceiver.

    (2) The sight should be pushed onto the
    receiver far enough so that the left-
    hand side of the base is flush or beyond
    the left-hand side of the dovetail on
    the receiver.

    h. After targeting, check to assure that the
    receiver is staked to retain the rear sight firmly
    in place.

    REPAIR AND REBUILD

    o. Repair. As the adjustable rear sight is
    replaceable only as an assembly, no replacement
    spare parts are furnished for field repair. Check
    machined type sight for loose or missing index
    plate and screw. The sight should be kept clean and
    lightly oiled to prevent rusting and insure proper
    operation.

    ORD B28-W3 was issued in March 1945.

    http://www.uscarbinecal30.com/forum/...topic2829.html
    Last edited by martin08; 11-21-2020 at 05:20 PM.

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    Advisory Panel browningautorifle's Avatar
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    Quote Originally Posted by martin08 View Post
    Here are the rear sight field upgrade instructions, which could have been happening in theater, April 1945.
    See, that's what I was talking about...what I thought maybe.
    Regards, Jim

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  12. #8
    Really Senior Member Bruce McAskill's Avatar
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    While your right Jim about the rear sight but if you take the rest in it seems to point towards a carbine made about the April 1944 time frame. Type 2 band, type 3 stock and even a type 4 trigger housing. lol. In April 1945 fighting was still going on and continued into May before it was generally over. In the photo the men all look pretty clean and so are their uniforms too. New maybe? just arrived from a replacement center or hospital? Just spent a couple of weeks on leave in Paris? Take your pick. (I would hope Paris.)

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    Really Senior Member firstflabn's Avatar
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    Quote Originally Posted by martin08 View Post
    Here are the rear sight field upgrade instructions, which could have been happening in theater, April 1945.

    ORD B28-W3 was issued in March 1945.
    "Could" is a bit of an understatement. By the spring of '45, parts or all of 15 ETO divisions had had their carbine rear sights replaced per MWO ORD B28-W3.

    This MWO was published in Sep 44 (not Mar 45).
    Pushing back the frontiers of ignorance, one post at a time.

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    Advisory Panel browningautorifle's Avatar
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    Quote Originally Posted by firstflabn View Post
    This MWO was published in Sep 44 (not Mar 45).
    That's how I took it, direction not choice. Will not may.

    Regards, Jim

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