This Winchester manufactured trigger spring screw with the thinner head is for the model 1890 slide action rimfire rifle and is in very good condition with light wear. (file photo)
Note: Winchester model 1890 slide action rimfire rifles with the following calibers and serial numbers have been observed with this part: 16902 & 191868
22 Short: 307126, 392480 & 644101
22 Long: 790566
22 W.R.F.: 261432 & 292176
