Originally Posted by GoGo Gadget
The idea being that the average rear echelon troop can make a 100 yard shot with it vs a 45 pistol. Being a light weight carbine, they are more likely to have it with them when it is needed versus handing them a big heavy rifle and expecting them to lug it and their typewriter or tool box around. I bet more enemy soldiers were killed with an M1 Carbine in WWII than with a Colt 45ACP.
Officers carried them. Serious officers carried a Garand. REMFS carried carbines and hogged all of the good combat boots and fighting knives until Patton put a stop to it by threatening to send anyone found with those items to the front line.