Once the war, the bayonet lug was added to lots of M1 carbines throughout the arsenal refurbishing process. By the start on the Korean War, the bayonet lug-Geared up M1 was standard concern. It's now exceptional to find an authentic M1 carbine without the bayonet lug. The M1 carbine mounts the M4 bayonet, which was according to the earlier M3 fight