This Winchester manufactured complete bolt assembly is for the model 77 semi-auto rimfire rifle and is in very good condition with light wear. This assembly consists of the bolt, ejector assembly, extractor assembly, firing pin, and timing rod assembly. (file photo)

Note: Firearms with the following serial numbers have been observed with this part: N.S.N., 3385, 27185, 27369, 72897, 73225, 130287, 146085 & 162478.