On a separate post on the .45 ACP there was disagreement on the issuance of the m-1 carbine.

I stated that there was too many officers unable to stop a rushing jap with a sword using his .45 ACP (yes shooting skill was probably the reason) so the marines issued officers the M-1 carbine as a substitute for the .45 ACP.

Granted the m-1 carbine round was also an anoemic round but on fully automatic (I' m told they had a auto/semiauto switch) they could locate a bunch of rounds across the enemy fast.

This much is clear: The M-1 Carbine was designed as a very close range and lightweight gun.

What' s the real reason for the introduction of the M-1 carbine?