Original Springfield Armory Model 1903 bolt-action service rifle, the standard US military rifle of WWI. Based on the Mauser 98 action, it served as the primary US rifle until replaced by the M1 Garand. Type: Rifle Action: Bolt-Action Caliber: 30-06 Springfield Capacity: 5 Year introduced: 1903, USA Weight: 103 oz Overall length: 43.5" Status: Discontinued Military use: Yes Intended use: Service Rifle