Before the Storm
Introduced between 1942 and 1971, Thompson M1A1 was built by Auto-Ordnance / Savage Arms for United States forces as a smg for total war armies.
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Thompson M1A1
United States Submachine Gun, Caliber .45, M1A1
smgAuto-Ordnance / Savage Arms · 1942–1971
OVERVIEW
The "Tommy Gun" became one of the most iconic weapons of WW2. Originally designed for trench warfare in WW1, it became a favorite of both gangsters and soldiers.
HISTORIAN'S COMMENTARY
In the Field
Chambered in .45 ACP (11.43×23mm) and operating by blowback, open bolt, it offered an effective reach of about 150 meters. Crews could sustain roughly 700 rounds per minute in trained hands, carried in a 4.74 kg frame with a 30-round magazine.
Historian's Note
In practice it thrived in alleys, trenches, and ruined interiors where seconds decided survival. Historians usually remember this type for the shock of close-range fire volume and morale impact.
SPECIFICATIONS
| Caliber | .45 ACP (11.43×23mm) |
| Action | Blowback, open bolt |
| Rate of Fire | 700 rpm |
| Muzzle Velocity | 285 m/s |
| Effective Range | 150 m |
| Magazine | 30 rounds |
| Weight | 4.74 kg |
| Length | 813 mm |
DEVELOPMENT
The Thompson was designed by General John T. Thompson in 1919. The M1A1 variant was a simplified wartime production model that eliminated the compensator and used a simpler blowback action, making it cheaper and faster to produce.
COMBAT HISTORY
Widely used by U.S. forces, particularly paratroopers, Rangers, and non-commissioned officers. British Commandos and SAS also favored the weapon. Its heavy .45 caliber bullet provided excellent stopping power in close combat.
NOTABLE USES
- [01]Used extensively by U.S. paratroopers on D-Day
- [02]Favored weapon of British Commandos
- [03]Standard issue for U.S. Army NCOs and officers
- [04]Used by resistance fighters across occupied Europe
CONTINUE RESEARCH
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Battle Context
- Normandy 1944
Weapons and platforms repeatedly documented across D-Day and the Normandy campaign.
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