Used on all .22 sporting and target models from 1936-1957, these are newly manufactured detachable swivels which twist and lock into the raised swivel bases on the Model 42, 43, 44, 45, 46, 51, 140, 144, 146 and 151 series models.
These are brand new, blue, steel swivels.
Does not include swivel bases – these must still be attached to your stock to use these.