Do you want a historical collectible or a practical weapon?
As wiscoaster points out in post #3, the AutoOrdnance Thompson is a .45 ACP long gun.
I bought an AutoOrdnance Thompson TM1 as a companion to an AutoOrdnance 1911A1 clone pistol I bought from my son to help him out in a hard time.
Both guns were from Numrich Arms, West Hurley NY, stamped with the Thompson brand and bullet logo, long before Kahr Arms bought the AutoOrdnance brand from Numrich.
The TM1 is as heavy as an original WWII M1 Thompson (12 lbs loaded with a 30rd "stick" magazine Type XXX) but the TM1 is semi-auto only with a 16.5 inch legal rifle length barrel.
It is cool as being the closest I'll get to a WWII relic, but it probably is not a serious practical weapon. Besides the heavy rifle type weight but pistol caliber, the length of pull (center of buttplate to trigger) is absurd (over 15 inches) as is the drop from line-of-sight to center of butt plate. The Thompson Model 1923 had a more ergonomic buttstock than any of the Thompson 1921, 1928, M1 types.
Squint your eyes, the TM1 is Audie Murphy movie cool. I'll probably never sell mine.
But as a weapon, honestly, the .45 Hi Point carbine has it beat. But I opt to keep the historical replica. Your interests, wants and needs should vary.
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