The U.S. M3-M3A1 Message Board

451 topics in this forum

1. M3 Book Addendum - Production Figures

   By dalbert, March 11, 2013
   • 4 replies
   • 12.8k views
   • 
   • dalbert
   • April 14, 2013

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

   By Nick Iannamico, July 21, 2003
   • 0 replies
   • 13.8k views
   • 
   • Nick Iannamico
   • July 21, 2003

3. valkyrie grease gun serial numbers

   By peter kohler, October 5, 2023
   • 2 replies
   • 338 views
   • 
   • NFA amnesty
   • Thursday at 11:34 PM

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

   By K Squared, April 7
   • 2 replies
   • 102 views
   • 
   • K Squared
   • April 8

5. M3 production year?

   By Balder, March 29
   • 9 replies
   • 218 views
   • 
   • JJX
   • March 31

6. Lee Marvin, "as cool as this looks....."

   By Mike Hammer, March 11
   • 15 replies
   • 437 views
   • 
   • JJX
   • March 27

7. M3A1 build video

   By zavrit, February 29
   • 8 replies
   • 260 views
   • 
   • zavrit
   • March 3

8. M3 Demilled Receiver

   By Drott340, January 15
   • 12 replies
   • 551 views
   • 
   • Mojopin2010
   • February 20

9. Trigger and Guide Rod Questions

   By ozziemo27, January 25
   • 9 replies
   • 253 views
   • 
   • ozziemo27
   • January 27

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

    By Rekraps, September 19, 2023
    • 28 replies
    • 1.4k views
    • 
    • Rekraps
    • January 20

11. M3 Design and reliability 1 2

    By Rekraps, January 4
    • 27 replies
    • 608 views
    • 
    • Rekraps
    • January 9

12. Guide Lamp badges

    By Got Uzi, January 6
    • 1 reply
    • 128 views
    • 
    • Babyface Nelson
    • January 6

13. Curtis Tactical Integral Suppressor, Delivered and Tested

    By Rekraps, July 20, 2021   

    • integral suppressor
    • curtis tactical
    • (and 5 more)

      Tagged with:

      • integral suppressor
      • curtis tactical
      • m3a1
      • videos with and without
      • pics
      • see swedish k unit under class iii forum!
      • new contact info!
    • 24 replies
    • 9k views
    • 
    • Rekraps
    • September 5, 2023

14. Grease Gun go thud thud thus thus

    By Mojopin2010, July 21, 2023
    • 16 replies
    • 747 views
    • 
    • Rekraps
    • August 21, 2023

15. M3 British markings question.

    By dsp, August 11, 2023
    • 5 replies
    • 307 views
    • 
    • Rekraps
    • August 15, 2023

16. Ratchet spring (barrel nut retaining spring) needed

    By dsp, May 23, 2023
    • 13 replies
    • 714 views
    • 
    • johnsonlmg41
    • July 31, 2023

17. Current price of M3 with British magazine release mod?

    By RoscoeTurner, June 26, 2023
    • 15 replies
    • 695 views
    • 
    • RoscoeTurner
    • July 23, 2023

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

    By yohuang, July 17, 2023
    • 6 replies
    • 396 views
    • 
    • Rekraps
    • July 20, 2023

19. M3 Stock question

    By chip5244, July 3, 2023
    • 1 reply
    • 314 views
    • 
    • Rekraps
    • July 19, 2023

20. Curtis Tactical Suppressors on my Medea Corp M3A1

    By Mojopin2010, April 23, 2023
    • 9 replies
    • 714 views
    • 
    • Rekraps
    • July 19, 2023

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

    By Mojopin2010, May 27, 2023
    • 3 replies
    • 491 views
    • 
    • Rekraps
    • May 30, 2023

22. WTS-Vintage USGI M3A1 armorer wall posters

    By Got Uzi, April 24, 2023
    • 2 replies
    • 351 views
    • 
    • Got Uzi
    • April 26, 2023

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

    By Blanksguy, July 5, 2022
    • 4 replies
    • 4.6k views
    • 
    • BRMCII
    • April 24, 2023

24. M3 retracting pawl spring

    By WCG, April 10, 2023
    • 7 replies
    • 514 views
    • 
    • Rekraps
    • April 17, 2023

25. OSS M3 Grease gun in 9mm

    By Annihilator, March 29, 2023
    • 2 replies
    • 519 views
    • 
    • Rekraps
    • March 31, 2023