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Originally Posted by
Sapper740
The Thompson 1928A1 was much more labor intensive
Exactly, the M1 and later M1A1
were completely different guns. Although some parts would interchange, many were different. Maybe 50% interchangeability... The Cutts was a whole different idea and I never found an issue with muzzle rise in either of them on auto. Shot them both lots...
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06-09-2024 12:46 PM
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From what I know and have seen, all Model 1928A1 TSMGs had the Cutts compensator as received from the factory
All Thompson M1 and M1A1
TSMGs were manufactured without the Cutts .
All trigger housings will inter-change among these models example: you can install a 1928A1 lower trigger
housing on a M1A1 upper,
The M1 Thompson with the same firing pin design as the Model 1928A1, had the fastest rate of fire of the three models listed
above. Rather than attempts to slow it down (larger cocking handle or other devices) the US Govt issued a waiver and producton
continued.
The Thompson double stacked magazine is very easy to load by hand to capacity as compared to the M3 or STEN without a tool
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1928A1s had later production cuts that included plain cocking knob and no cooling fins or Cutts Comp. The barrels would interchange and front tenon so M1s and earlier could use forestock or grip. M1
and A1 never had them. The original M1 had a simple rear sight but susceptible to damage so the protective ears came in. The floating firing pin went out according to some with the first thousand M1s made. I had one... Yes, the trigger parts would interchange but the later parts were simplified with sticks instead of paddles. The extractors were the same but ejectors different and of course bolts. The lowers would slide on but were not dressed for the opposite model of uppers. The butts wouldn't interchange but the grip would. Like I said, about 50%. The mags were great...I liked my drum for the '28. Mine was a '28 not an A1 and my M1 was not an A1. No pics of my M1...
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Jim. Looks like a Savage 1928, the best after the 1921
Field repair to stock, rare to find a stock without the stock bolt
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