Introduced in 1986 as an updated version of the M10/11 family of pistols and sub-machine guns, chambered in Ingram's own "30 Magnum" cartridge, a scaled down carbine round capable of delivering 600 ft/ lbs of force. Adjustable pin front and two leaf rear sight, with protective wings on both, marked "INGRAM MK I I I/ 30 MAGNUM" on the right side of the frame and "00003" and "LAS VEGAS/ NV. USA." on the left. Smooth grip, with a fixed wire buttstock and ribbed synthetic forearm. With documents related to Ingram's carbines and SMGs, along with a brown canvas magazine pouch for the Model 6 SMG, marked "M.E.C. 1950" on the rear.

Excellent, with 95% of the rough blue, showing machining and welds under the finish, mild color variations, and a small area of pitting on the left side of the frame. PLEASE NOTE: This arm is a prototype, not fully developed, and firing the arm may result in harm to the weapon and/ or the operator. Rock Island Auction and all related parties assume no responsibility for the use or misuse of this arm.