


International Business Machines, more commonly known as IBM, was the last prime contractor selected to manufacture the carbine during 1943. The only carbine contractor with any considerable gun making experience before the war was the Winchester Repeating Arms Company, who had also designed the carbine. Their diverse previous experience ranged from the making of music jukeboxes to automobile parts. Most of the civilian prime contractors that manufactured the carbine had never before been involved in the production of firearms. With ten prime contractors and numerous subcontractors supplying parts formanufacturing the carbine during World War II, there are enough variations to interest everyone from novice to advanced collectors, and of course shooters. The front sight is the stamped/brazed construction manufactured by Simpro Manufacturing Company of Newark, NJ (SI) and properly marked for an IBM carbine.
