M1 Carbine is a great weapon but the reload is it's biggest weakness which is the main reason why it's a cheaply priced gun.

M1 Carbine has probably one of the longest reload freeze in the game. If you know how to compensate for it's long reload freeze, then it's a very good gun. M1 Carbine has a unique ability to shoot through extremely thick walls by shooting up or down. You can shoot through boxes and it will not damage them.

There's a video which demonstrates the M1 Carbine's performance. Take a look at it if you want.

http://www.youtube.com/watch?v=1YaD1dn28bM