This Winchester manufactured late variation breech bolt is for the model 1897 slide action shotgun in 12 gauge and is in very good condition with light wear. The late variation breech block is designed to handle the late variation firing pin lock which uses a coil spring.   (file photo)

Note: Winchester model 1897 slide action shotguns with the following serial numbers have been observed with this part:

12 Gauge: 458896, 645103, 715713, 769466, 912668 & 914469