After the war, the bayonet lug was additional to quite a few M1 carbines during the arsenal refurbishing course of action. By the start with the Korean War, the bayonet lug-equipped M1 was standard issue. It's now scarce to find an authentic M1 carbine without the bayonet lug. The M1 carbine mounts the M4 bayonet, which was depending on the sooner