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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!

486 topics in this forum

  1. M3 Book Addendum - Production Figures

    By dalbert,
    • 4 replies
    • 14.2k views

  2. U.S. M3-3A1 Submachine Gun (Book)

    By Nick Iannamico,
    • 0 replies
    • 14.9k views

  3. Curtis Tactical suppressor disassembly

    By Frank I.,
    • 5 replies
    • 175 views

  4. Frt for a semi greasegun?

    By tom catman,
    • 2 replies
    • 358 views

  5. Curtis Tactical Integral Suppressor, Delivered and Tested 1 2

    By Rekraps,   
    • 29 replies
    • 12.9k views

  6. M3 / M3A1 Grease Gun Stock Catch

    By scotty1957****,
    • 11 replies
    • 2.1k views

  7. M3 Grease gun - U.K based

    By Ad Lav,
    • 4 replies
    • 718 views

  8. M3A1 barrel sells for $576.00

    By Frank I.,
    • 7 replies
    • 554 views

  9. New M3 video

    By JJX,
    • 0 replies
    • 187 views

  10. M3 blurb from 1987

    By Frank I.,
    • 14 replies
    • 587 views

  11. Installing cocking handle spring

    By Got Uzi,
    • 5 replies
    • 2.2k views

  12. Heidler M3 book

    By BillinBama,
    • 1 reply
    • 450 views

  13. Some Grease Gun finds at SAR show 2025

    By Frank I.,
    • 5 replies
    • 759 views

  14. who were the makers of M3a1 bolts and Cage Codes?

    By tal35,
    • 8 replies
    • 3.5k views

  15. WTS: WWII M3 Grease gun parts

    By Planejack,
    • 3 replies
    • 873 views

  16. M3 Spare parts to sell, opinions please

    By Planejack,
    • 7 replies
    • 1.1k views

  17. Chuck Spano/Medea Corp

    By Remo Williams 1,
    • 3 replies
    • 1.2k views

  18. New to the M3A1 Grease Gun and Need Advice 1 2

    By tricky9914,
    • 39 replies
    • 3.6k views

  19. BYOI M3/M3A1 Submachine Gun PS Magazine July 1971

    By Frank I.,
    • 1 reply
    • 470 views

  20. BYOI M3/M3A1 Submachine Gun PS Magazine July 1971

    By Frank I.,
    • 0 replies
    • 293 views

  21. Looking for a demilled M3 frame

    By Jadon,
    • 2 replies
    • 627 views

  22. Progress on my M3 kit.

    By nmsang501,
    • 2 replies
    • 429 views

  23. Grease gun ejector with a hole

    By Annihilator,
    • 3 replies
    • 1.1k views

  24. New M3 with rust - who can repark?

    By kp31,
    • 12 replies
    • 1.4k views

  25. M3A1 Chrome Lined Barrel

    By ordnance,
    • 2 replies
    • 500 views
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