Stamped at forward end of cartridge chqmber is,"U. S. CARBINE 30 M. M." Stamped on front of barrrel, underneath, is, "DAVIDSON'S GREENSBORO N C.
The M1 carbine was a semi-automatic .30 caliber firearm that was standard issue to U.S. Army personnel throughout World War II, the Korean War, and the Vietnam War. It was intended to be a lightweight alternative to more unwieldy and heavier rifles, and it included a 15 round magazine. IBM was one of a handful of equipment manufacturers that were new entrants into firearm manufacturing after being enlisted by the US government to support the WWII war effort. In total, IBM produced several hundred thousand M1 carbines throughout the war. Other manufacturers courted by the government included General Motors, Underwood Typewriter Company, National Postal Meter, and Rock-Ola, a jukebox maker. M1 carbines are still used today by some police and security forces around the world, and are highly collectable.