This Winchester manufactured third model complete breech bolt assembly is for the third model 1890 slide action rimfire rifle in either 22 S,L, or LR caliber and is in very good condition exhibiting a brownish gray patina with light wear and possibly a few specks of oxidation. This breech bolt assembly consists of the breech bolt, extractor, extractor pin, firing pin, firing pin spring, firing pin stop, and both firing pin stop screws. (file photos)

Note: Winchester model 1890 slide action rimfire rifles with the following calibers and serial numbers have been observed with this part:

22 Short: 392480, 637738 & 644101

22 Long: 790566