The M1947 Johnson auto carbine was intended as a replacement for a .30 caliber semi-automatic rifle that was standard US service rifle during World War II, the Korean War, and a limited amount when?
M1947 Johnson auto carbine The M1947 Johnson auto carbine is a semi-automatic derivative of the M1941 Johnson machine gun. It was intended as a replacement of the M1 rifle but not accepted. The auto carbine never got past the prototype stage, only five of them ever being made.
Merrill carbine The Merrill carbine was a breechloader firearm designed by Baltimore, Maryland gunsmith and inventor James H. Merrill. It was one of several firearms either manufactured or altered by Merrill in fulfillment of contracts with the Union government during the U.S. Civil War.