The M14 rifle is basically an improved select-fire M1 Garand with a 20-round magazine. Therefore, the M1 carbine is significantly less powerful than the M1 Garand. The U.S. Army then began testing several rifles to replace the obsolete M1 Garand. The M1 rifle was named after its Canadian-American designer, John Garand. The United States Army then began testing several rifles to replace the obsolete M1 Garand. Winchester, Remington, and Springfield Armory's own John Garand offered different conversions. He also designed a competing design to the M1 Garand rifle. The US tested several variants of the FAL to replace the M1 Garand. History shows MacArthur vetoed the .276 Pedersen cartridge for use in the Garand rifle. The Pedersen rifle lost out to the rifle designed by John C. Garand. However, the Pedersen rifle lost to a new semi-auto rifle designed by John C. Garand. Early experiments with select-fire versions of the M1 Garand proved disappointing. However, early experiments with select-fire versions of the M1 Garand proved disappointing. Several accessories were used with the Garand rifle. Most variants of the Garand, save the sniper variants, never saw active duty.