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Thompson machine gun

Article about: Just about everyone knows what a Thompson gun looks like, it holds a somewhat iconic status amongst collectors... and is a highly prized gun. Back in 1940 when we Brits stood alone in the fi

  1. #1

    Default Thompson machine gun

    Just about everyone knows what a Thompson gun looks like, it holds a somewhat iconic status amongst collectors... and is a highly prized gun. Back in 1940 when we Brits stood alone in the fight against the might of Nazi Germany, it was America that we turned to when we were in dire need of machine guns for our troops. Orders were placed directly with the manufacturers, and by April 1940 the first 'Savage' manufactured 'Model 1928' started to arrive. After the signing of the 'Lease-Lend act' in March 1941, all guns were stamped... 'US MODEL OF 1928A1'. Some - but not all - also being stamped with 'US PROPERTY'. Certain modifications were made to these 'Lease-Lend' guns now destined for military use, the first to go was the rather complex adjustable Lyman rear sight which was replaced by a simple post-type peephole sight set to a range of 100 yards, with a notch to the top for ranges at approximately 250 yards. The forward pistol grip was replaced with a horizontal grip, and then the cooling fins on the barrel were dispensed with.

    The next stage in the evolution of the weapon was primarily aimed at speeding up production and cutting costs. The cocking handle was moved to the right side of the gun, and the rather complicated 'H' type 'Blish' lock (breech block) was replaced with a much simplified version. Slots cut into the receiver to accept the drum magazine were also discontinued. The first M1 guns started appearing in early 1942, and by July of that year 'Savage' had produced around 48,000 guns. Serial numbers were stamped on the left side of the receiver and on the underside of the lower frame, but some guns reportedly left the assembly line with miss-matched numbers... or with no number stamped on the lower frame. Guns which were refurbished often ended up with miss-matched parts, the emphasis being on keeping the guns working rather than keeping everything together. In the real world, soldiers did not concern themselves whether their guns were all matching numbers... all they wanted was a gun that worked properly!

    The particular gun I have is not matching, but there is such a discrepancy between the serial number on the frame and that of the receiver that it could have only come about through refurbishment or field repair. The receiver has a five figure serial number which should theoretically place it as being manufactured before July 1942, but the ordnance acceptance mark of crossed cannons only commenced in October 1942. It also carries the 'inspector of ordnance' stamp of Lt-Col Ray L. Baldwin who's initials of 'RLB' were stamped on the left side of the receiver on all savage manufactured guns up to 1942. The 'GEG' stamp within a circle is the mark of civilian inspector, George E. Goll. On the grip of the gun are carved a set of initials, the initials carved into the left side look to be a first attempt, and then whoever did it had another go on the right... the result being a clearly legible E.M A... There is no way of knowing if this was done in WW2 or later, but whenever it was carried out it adds just a bit more to the history of a well used gun... note also the armourers repair to the grip. Click on images (twice) to enlarge.

    Cheers,
    Steve


    Thompson  machine gunThompson  machine gunThompson  machine gunThompson  machine gunThompson  machine gunThompson  machine gunThompson  machine gunThompson  machine gunThompson  machine gunThompson  machine gunThompson  machine gunThompson  machine gun
    Last edited by HARRY THE MOLE; 10-27-2019 at 07:40 PM.

  2. #2

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    Great educational piece; thanks!

  3. #3

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    An iconic tool that helped change the world..

    Very informative

    Smitty

  4. #4

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    Just ordered one these de activated to current UK spec i will post some pictures when it arrives in around 4 weeks, as stated a well written educational piece thank you.

  5. #5

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    Quote by greatwhite View Post
    Just ordered one these de activated to current UK spec i will post some pictures when it arrives in around 4 weeks, as stated a well written educational piece thank you.
    Which model have you ordered? If it is an M1A1 the only visible difference between the M1 and M1A1 is the 'ear' protectors of the rear sight. The lock was again modified as well... The firing pin being welded in place.
    Cheers,
    Steve.

  6. #6
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    Great looking piece Steve!
    Thanks for the story behind it!
    Semper Fi
    Phil

  7. #7

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    One more picture... the guns currently in my collection. It is worth noting that the early Thompson guns suffered with the same problem of safety as the much maligned Sten gun (pictured above the Thompson). With the breech closed on an empty chamber, there was no operational safety. If the gun was dropped on to its butt, there was a reasonable chance that the lock would be thrown far enough back for it to strip a round from the magazine and fire it on return to battery. The British tried to cure this problem on the Thompson by cutting a slot into the underside of the lock so that the safety could be applied when the lock was forward, but it was never completely successful. Click on image to enlarge.

    Cheers,
    Steve


    Thompson  machine gun
    Last edited by HARRY THE MOLE; 10-27-2019 at 09:34 PM. Reason: clarity

  8. #8

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    Very nice mate.

  9. #9

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    Interesting Steve. When was the Cutts Compensator dropped from the order specifications of the British purchased Thompsons? Some photos I've seen of NZ Army in North Africa show Thompsons with the Cutts Compensator and a horisontal foregrip, factory spec or unit armourer modification?

    Here's a photo at El Alamein Oct 1942

    Thompson  machine gun

  10. #10

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    The vertical fore grip of the model 1928 was changed to the horizontal grip when the gun was redesignated the model 1928A1... The gun in the picture might be a smooth barrelled 1928A1 with the bolt to the rear in the cocked position. The Cutts compensator was dropped from the model M1 onwards.

    Cheers,
    Steve

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