This is the breech bolt 1890, 1906. It will also fit the model 62 Winchester pump .22 rifle. This is a bolt 3rd model 1890. See the picture below that shows the difference between 2nd and 3rd models. This is a stripped version and the inner parts ( firing pin and spring (741 and 741 spring), the extractor and pin (wp26 or wp26c and p111), and the firing pin stop and 2 screws (wp2 and 2x wp60) may be purchased separately. Keep in mind that the finish varies quite a bit due to the age of the bolt, and small extra fee you can select slow rust bluing as an option.