3-inch gun M1903 [SEP] conflict
increased range. References vary as to whether the bore was lengthened or not, but the increase in overall length supports that it was. The weapon was manufactured by Watervliet Arsenal and was on a non-retractable pedestal carriage. 101 of these weapons were emplaced 1904–1917.
History Basis for anti-aircraft guns.
The 3-inch gun M1917 was a World War I-era US-made anti-aircraft gun based on the 3-inch gun M1903. It was designed for a fixed mounting and remained in service, primarily at Coast
"E" Material.
- E1 Major items of railway and permanent and semi-permanent artillery
- E2 Gun, 3-inch, M1903. Barbette Carriage M1903, 3-inch gun M1903
- E3 Guns, 5" - All models - Parts and equipment
- E4 Gun, 6-inch, M1900. on Barbette Carriage M1900, 6-inch gun M1897
- E5 Guns, 7" - All models - Parts and equipment
- E6 Gun, 8-inch, M1888MIA1. on Barbette Carriage M1918 on railway Carriage M1918MI (8-inch M1888