J.D. Pedersen's secret WWII device that converted the M1903 Springfield bolt-action into a semi-automatic pistol-caliber carbine. Developed as the secret weapon for the planned 1919 Allied offensive, approximately 65,000 were made before the Armistice rendered them obsolete. Type: Pistol Action: Semi-Automatic Caliber: .30 Pedersen Capacity: 40 Year introduced: 1918, USA Weight: 9.5 oz Overall length: 27" Status: Discontinued Military use: Yes Intended use: Military, Collecting