M1 Garand Rifle Cutaway, 1951
The M1 Garand is a rifle with a storied reputation. Over 6.25 million of these .30 caliber shell-firing rifles were produced from 1936 to 1957.
This cutaway was published in 1951 to an audience of veterans who had been quite familiar with the Garand on tours of duty during both WWI and WWII.
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Source: Popular Science August 1951