New condition US issue M5A1 bayonets with new condition G.I. scabbards. Various makers, new old stock 1950s production bayonets that have never been in a scabbard. The accompanying scabbard is a NOS 1967 vintage M8 A1. The M5A1 bayonet was made specifically for the M1 rifle. Developed in 1953 to replace the 10 inch M1 bayonet. It has the same blade shape as the carbine, M 14, and M-16 bayonet.