This is a NEW extractor for Models 1892, 1894, 64, 53 and 55 Winchester. It fits all calibers model 1894, 64, 53 and 55. This will fit on the 1892 in .38 and .44 cal rifles. (the 1892 uses the smaller cal 1892 extractor 25 and .32 cals, part number 737). The extractor is held in the bolt by a pin, part number p145.