https://en.wikipedia.org/wiki/M5_bayonet
The M5 Bayonet was adopted by the U.S. military in 1953 to replace other bayonets for the M1 Garand rifle. It uses the M8A1 scabbard.
The M5 bayonet has a 6¾ inch blade, and overall length is 11½ inches. Weight is 11½ ounces.
https://en.wikipedia.org/wiki/M1905_bayonet
The M1905 bayonet has a 16-inch (40.6 cm) steel blade and a 4-inch (10.16 cm) handle with wooden or plastic grips. The bayonet also fits the U.S. M1 Garand rifle. From 1943 to 1945, a shorter, 10-inch (25.4 cm), bladed version was produced with black or dark red molded plastic grips, and designated the M1 bayonet. A number of M1905 bayonets were recalled from service, their blades cut down, and they were reissued as M1 bayonets.