The T20 GarandDuring World War II the M1 Garand gave the average American infantryman unparalleled f

The T20 GarandDuring World War II the M1 Garand gave the average American infantryman unparalleled firepower.  Sure, other nations, both Axis and Allied, had semi-automatic designs. The Germans even had a modern assault rifle with the STG 44.  However, no other nation was able to produce a semi automatic rifle in enough quantities to make it their standard military firearm. In 1943, John C. Garand began work on a Garand variant that would increase it’s firepower even further.   The new T20 was a prototype inspired by creations of individual soldiers and Marines who modified their Garands for more firepower.  The T20 was a select fire weapon that was both semi automatic and fully automatic.  The T20 was modified to accept 20 round detachable magazines from the Browning Automatic Rifle.  Since the .30-06 cartridge would have been difficult to control when firing a fully automatic firearm, the T20 also featured a muzzle break to reduced recoil and muzzle climb.Only a handful of prototypes were produced, which are now on display at the Springfield Armory Museum.  Prototypes were also produced with a pistol grip, and a light machine gun version with a bipod.  None were ever mass produced. -- source link

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