M1904 may refer to:
6-inch siege gun M1904, Imperial Russian artillery gun 76-mm mountain gun M1904, see List of mountain artillery M1904 model of the Maxim gun M1904 or Winchester Model 1904 rifle, see List of Winchester models M1904 carbine, variant of the Krag–Jørgensen bolt-action rifle M1904 saddle, variant of the McClellan saddle F119 Telescope Panoramic variant M1904, see List of the United States Army fire control and sighting material by supply catalog designation F135 Mount Telescope variants M1904A1 and M1904A1M1, see List of the United States Army fire control and sighting material by supply catalog designation