click to enlarge
The M1, designed by John C. Garand, was the standard issue military rifle used by the U.S. Army from 1936 to 1957, when it was replaced by the lighter M14 rifle.
The M1 was one of the first semi-automatic rifles to see action in combat. It offered a great improvement in fire power over the bolt-action M1903 series rifle it replaced. It was rugged, reliable, and tolerant to the abuses of use in the field. The rifle used .30-06 cal. cartridges in eight-round clips. Rifle, Model M1
The M1, or Garand rifle as it came to be known after the name of its inventor, John Garand, held many advantages over the M1903 Springfield rifle. The semi-automatic operation and reduced recoil allowed new troops to achieve a higher degree of accuracy with a shorter period of training than was previously possible. The sighting system was superior under actual combat conditions. Ease of disassembly, cleaning, and oiling were also a great advantage. Most important was the increase in rate of fire, limited only by the proficiency of the soldier in marksmanship and his dexterity in inserting eight round clips of ammunition into the weapon. In the face of overwhelming odds, the capability of the M1 rifle to deliver superior firepower would most often carry the day.
The first production M1 was successfully proof fired, function fired, and fired for accuracy on July 21, 1937. Thus began manufacture of what was to become the greatest production effort in the history of Springfield Armory. During the entire production history of the M1 rifle, Springfield Armory produced over 4.5 million M1s. 1903 Photo
General Douglas MacArthur reported on the M1 to the Ordnance Department during heavy fighting on Bataan that: "Under combat conditions it operated with no mechanical defects and when used in foxholes did not develop stoppages from dust or dirt. It has been in almost constant action for as much as a week without cleaning or lubrication."
General George S. Patton Jr. reported to the Ordnance Department on January 26, 1945: "In my opinion, the M1 Rifle is the greatest battle implement ever devised." Schematic, M1 1903 Schematic Schematic drawing by John S.A. Kwiatkowski
The M1 rifle was described in military manuals as "a gas-operated, clip-fed, air-cooled, semi-automatic shoulder weapon." The design incorporated a spring-loaded piston operating within a gas cylinder mounted on the end of the barrel. Gas was fed through a gas port in the barrel to a fixture mounted at the muzzle of the barrel. As the bullet passed this point, exiting the barrel, the compressed gas behind it flowed down a port to the piston. The piston drove a 16-inch operating rod to the rear where a cam on the back of the operating rod unlocked a two lug rotary bolt and then carried the bolt to the rear of the receiver. The operating rod, a hollow tube, contained a spring which resisted rearward movement. The spring, in turn, exerted pressure on the follower rod which operated the feeding mechanism of the weapon. Upon firing of the last cartridge, the clip was automatically ejected.
Information on this page courtesy of Springfield Armory Historic Site.