The Model 1877 was manufactured from 1877 to 1878 and has attributes of both the Model 1873 and the Model 1879. Only around 20,000 of these rifles were manufactured making them much rarer than the other standard models. It has generally the standard markings and features for this variation. However, the serial number dates to the summer of 1878, and the stock has an "ESA/1877" cartouche.

Fine overall with the vast majority of the original case colors, 50% thin original blue finish mixed with dark brown patina and some light oxidation, and some minor dings and scratches. The markings are mostly crisp, and it is mechanically excellent.