This was assembled at some point during the last 2 years of production (1955-1957).
The last M1 Garand ever assembled was serial number
6084405, completed on May 17, 1957, and is on display at the Springfield Armory National Historic Site. However, the highest recorded M1 serial number known to exist is
6100499, as receivers were not assembled in strict sequential order.
[American Rifleman]
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