M1947 Johnson auto carbine

The M1947 Johnson auto carbine is an American semi-automatic rifle designed by Melvin Johnson in 1947 as a derivative of his M1941 Johnson machine gun. It was meant to replace the M1 rifle in United States service but was not accepted, and it never got past the prototype stage, with only five of them ever made. The infobox lists a short recoil action, the .30-06 Springfield cartridge, a weight of about 8.75 pounds, an overall length of about 38 inches and a rate of about 60 rounds per minute. Feeding was from either a 10-round cylindrical magazine or a 25-round single-stack box magazine. Because the carbine never entered service it has no operators and was used in no war, which makes it one of the abandoned military rifle projects of its period rather than a fielded weapon.