Winchester Serial Numbers Model 101 Apr 2026

A "K" prefix in the serial number usually indicates manufacture after 1967, often associated with the Kodensha plant.

Current production Winchester 101s are manufactured in Belgium with assembly in Portugal . These use a different mechanism and numbering system than the vintage Japanese-made versions. Winchester Serial Numbers Model 101

Dating a vintage Winchester Model 101 can be challenging because detailed serialization records were not strictly maintained after 1971. These classic shotguns were primarily manufactured in Japan by from 1963 until 1987. Known Serial Number Ranges (Pre-1971) A "K" prefix in the serial number usually