
Sales of the Thompson were extremely slow. The first production Colt Thompson came off the assembly line in March of 1921.īy this time, World War I had ended and there was no demand for new arms. The original retail price of the 1921 model was $200, supplied with one 20-round box magazine. The actuator knob, fire mode selector and the safety levers were finely checkered. No compensators were originally fitted to the guns. The barrel of the Thompson featured radial cooling fins and a milled blade front sight. The rear sight was adjustable for windage and elevation. The 1921 model had the famous Colt blue finish, and fine walnut stocks. The original run of Thompson guns was manufactured to the very high commercial standards of the day. Only 15,000 Thompson Submachine Guns were manufactured by Colt, all as the Model of 1921. All of the original 1920s production Thompsons were manufactured by Colt under contract with the Auto-Ordnance Corp.

The very first production run of the Thompson submachine gun only ran from 1921 to 1922.

This was subcontracted to Colt because the Auto-Ordnance Corporation, which developed the gun, did not have any manufacturing capabilities. for the actual manufacture of the Thompson. In 1921, John Thompson’s Auto-Ordnance Corporation signed an agreement with Colt’s Patent Fire Arms Manufacturing Co. Thompson, it was largely the efforts of Payne and Eickhoff that created it. To design his submachine gun, dubbed a “trench broom” for sweeping the enemy from the trenches, Thompson enlisted the help of several talented individuals, including Theodore Eickhoff and Oscar Payne.Īlthough the resulting submachine gun was named after John T. Thompson, conceived the American version of a submachine gun, although the original concept originated in Europe.
