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 retaining perhaps 35% original nickel finish with the balance exhibiting a brownish gray patina with light wear. 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)