Underwood Typewriter Company WWII M1 Carbine production. One of many non-firearms manufacturers drafted for wartime production. Underwood-marked receivers are collectible. Type: Rifle Action: Semi-Automatic Caliber: 30 Carbine Capacity: 15 Year introduced: 1943, USA Weight: 112 oz Overall length: 35.6" Status: Discontinued Military use: Yes Intended use: Military, Collector