This Winchester manufactured late variation hammer with guide rod is for the standard grade model 12 slide action shotgun and is in very good condition with light wear. (file photo)
Note: Winchester model 12 slide action shotguns with the following gauges and serial numbers have been observed with this part:
12 Gauge: 318823, 588236, 899492, 933942 & 1129908
16 Gauge: 712401, 808640, 1116030 & 1677926
20 Gauge:
28 Gauge: