International Business Machines Corporation M1 Carbine produced during WWII. IBM adapted its manufacturing plants to produce military weapons, a notable example of wartime industrial conversion. Type: Carbine Action: Semi-Automatic Caliber: 30 Carbine Capacity: 15 Year introduced: 1943, USA Weight: 58 oz Overall length: 35.65" Status: Discontinued Military use: Yes Intended use: Carbine, Secondary Infantry