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Description

The Thompson submachine gun (also known as the "Tommy gun", "Chicago typewriter", "Chicago piano", "trench sweeper", or "trench broom") is a blowback-operated, selective-fire submachine gun, invented and developed by United States Army Brigadier General John T. Thompson in 1918. It was originally designed to break the stalemate of trench warfare of World War I, although early models did not arrive in time for actual combat.

The Thompson was widely adopted by the U.S. armed forces during World War II, and was also used extensively by other Allied troops during the war. Its main models were designated as the M1928A1, M1 and M1A1 during this time. More than 1.5 million Thompson submachine guns were produced during World War II.

The M1A1, standardized in October 1942 as the United States Submachine Gun, Cal. .45, M1A1, could be produced in half the time of the M1928A1, and at a much lower cost. The main difference between the M1 and M1A1 was the bolt. The M1 bolt had a floating firing pin and hammer, and the bolt of the M1A1 had the firing pin machined to the face of the bolt, eliminating unnecessary parts. In 1939, Thompsons' cost the government $209 apiece. By the spring of 1942, cost-reduction design changes had brought this down to $70. In February 1944, the M1A1 reached a low price of $45 each, including accessories and spare parts, although the difference in price between the M1 and M1A1 was only $0.06. By the end of the war, the M1A1 was replaced with the even lower-cost M3 (commonly called the "Grease Gun").

Source: Wikipedia

--> Original (July 2018)

Description

The Thompson submachine gun (also known as the "Tommy gun", "Chicago typewriter", "Chicago piano", "trench sweeper", or "trench broom") is a blowback-operated, selective-fire submachine gun, invented and developed by United States Army Brigadier General John T. Thompson in 1918. It was originally designed to break the stalemate of trench warfare of World War I, although early models did not arrive in time for actual combat.

The Thompson was widely adopted by the U.S. armed forces during World War II, and was also used extensively by other Allied troops during the war. Its main models were designated as the M1928A1, M1 and M1A1 during this time. More than 1.5 million Thompson submachine guns were produced during World War II.

The M1A1, standardized in October 1942 as the United States Submachine Gun, Cal. .45, M1A1, could be produced in half the time of the M1928A1, and at a much lower cost. The main difference between the M1 and M1A1 was the bolt. The M1 bolt had a floating firing pin and hammer, and the bolt of the M1A1 had the firing pin machined to the face of the bolt, eliminating unnecessary parts. In 1939, Thompsons' cost the government $209 apiece. By the spring of 1942, cost-reduction design changes had brought this down to $70. In February 1944, the M1A1 reached a low price of $45 each, including accessories and spare parts, although the difference in price between the M1 and M1A1 was only $0.06. By the end of the war, the M1A1 was replaced with the even lower-cost M3 (commonly called the "Grease Gun").

Source: Wikipedia

--> Original (July 2018)