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The U.S. M3-M3A1 Message Board

All NFA Rules Apply - Visit Frank Iannamico's Machinegunbooks.com website to purchase "The U.S. M3-3A1 Submachine Gun" book!

469 topics in this forum

  1. wtb M3A1 grease gun barrel

    By dodge15,
    • 4 replies
    • 596 views

  2. M3A1 on Gunbroker

    By Drott340,
    • 1 reply
    • 336 views

  3. valkyrie grease gun serial numbers

    By peter kohler,
    • 2 replies
    • 684 views

  4. Instructions/Measurements for Barrel Installation for M3-M3A1

    By K Squared,
    • 2 replies
    • 408 views

  5. M3A1 build video

    By zavrit,
    • 8 replies
    • 659 views

  6. Trigger and Guide Rod Questions

    By ozziemo27,
    • 9 replies
    • 731 views

  7. Experimental M3, two consecutive SN guns on GB! 1 2

    By Rekraps,
    • 28 replies
    • 2.3k views

  8. M3 Design and reliability 1 2

    By Rekraps,
    • 27 replies
    • 1.6k views

  9. Guide Lamp badges

    By Got Uzi,
    • 1 reply
    • 447 views

  10. Grease Gun go thud thud thus thus

    By Mojopin2010,
    • 16 replies
    • 1.3k views

  11. M3 British markings question.

    By dsp,
    • 5 replies
    • 501 views

  12. Ratchet spring (barrel nut retaining spring) needed

    By dsp,
    • 13 replies
    • 1.4k views

  13. What's the correct length of the barrel pin?

    By yohuang,
    • 6 replies
    • 574 views

  14. M3 Stock question

    By chip5244,
    • 1 reply
    • 486 views

  15. Curtis Tactical Suppressors on my Medea Corp M3A1

    By Mojopin2010,
    • 9 replies
    • 1.2k views

  16. Curtis Tactical M3 Grease Gun in Action (Range bans F/A unless RSO is present so I play nice)

    By Mojopin2010,
    • 3 replies
    • 955 views

  17. WTS-Vintage USGI M3A1 armorer wall posters

    By Got Uzi,
    • 2 replies
    • 566 views

  18. WTB: M3A1 Ejection-Cover-Pin and Threaded-Receiver-Insert.

    By Blanksguy,
    • 4 replies
    • 5k views

  19. M3 retracting pawl spring

    By WCG,
    • 7 replies
    • 871 views

  20. OSS M3 Grease gun in 9mm

    By Annihilator,
    • 2 replies
    • 856 views

  21. Are there really only 75 fully transferable M3 "Grease" guns? 1 2

    By maxfaxdude,
    • 42 replies
    • 10.8k views

  22. Heidler M3 book

    By elviejo,
    • 2 replies
    • 727 views

  23. Using Thompson 5-mag pouch for M3 mags during WWII?

    By levallois,
    • 22 replies
    • 3.2k views

  24. M3 Date and sight question

    By WCG,
    • 13 replies
    • 3.1k views

  25. Grease gun ejector with a hole

    By Annihilator,
    • 2 replies
    • 615 views
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