This Winchester manufactured early variation complete breech bolt assembly with the raised round face is for the model 12 slide action shotgun in 12 gauge with a 2 3/4" chamber 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 & 1385282
