M1917 bayonet
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The M1917 bayonet was designed to be used with the US M1917 .30 caliber rifle, as well as with the Winchester Model 1897 and M12 trench shotguns. The blade was 16 inches (40.6 cm) long. It would not fit the M1903 .30 caliber (Springfield) or the M1 .30 caliber (Garand) US service rifles.