After the war, the bayonet lug was added to lots of M1 carbines during the arsenal refurbishing procedure. By the beginning in the Korean War, the bayonet lug-Outfitted M1 was standard concern. It is currently uncommon to find an unique M1 carbine with no bayonet lug. The M1 carbine mounts the M4 bayonet, which was determined by the earlier M3 figh