Log#6402 The US Springfield M1 Garand is a semi-automatic rifle that was standard issue for the American military during World War II and the Korean War. It is chambered for .30-06 caliber bullets. The M1 is gas-operated and has an eight-round clip-fed system. Despite its weight and length, it is known for its reliability, accuracy, and ruggedness. Its significance in warfare earned it the title The greatest battle implement ever devised by Gen. George S. Patton.