I'm a fan of the M-1 Carbine and, in some ways, it could be argued that it was as much an "assault rifle" as the later MP 44.
However, in my opinion, the MP 44 does deserve greater recognition as a "true" assault rifle than the M-1 Carbine. Here's why:
1. Not select-fire - WWII M-1 Carbines were semi-auto only. One of the definitions of a true assault rifle is that it be select fire. The later Korean era M-2 Carbines were select fire, but that was a later development not available on the original M-1 design. (Also, the M-2 Carbine didn't hold up well to full-auto over time. My understanding is parts breakage, especiall extractors and bolts, was fairly common).
2. Ballistics - The .30 Carbine round was just "so so" as an "intermediate" round. It fired a 110 gr projectile at about 1,900 FPS. The MP 44 fired a 125 gr round at about 2,100 FPS. That means the the MP 44 round was both heavier and faster.
The other issue is the bullet design. The .30 Carbine round uses a relatively short, round nose bullet, which is not as effective as the pointed bullets of the 7.92 Kurz and later AK rounds.
Like I'm said, I'm a fan of the M-1 Carbine, so I'm not even saying I agree with this argument completely. I can just see the reasons why it wasn't as highly regarded as the MP 44 or the later AK 47.
However, in my opinion, the MP 44 does deserve greater recognition as a "true" assault rifle than the M-1 Carbine. Here's why:
1. Not select-fire - WWII M-1 Carbines were semi-auto only. One of the definitions of a true assault rifle is that it be select fire. The later Korean era M-2 Carbines were select fire, but that was a later development not available on the original M-1 design. (Also, the M-2 Carbine didn't hold up well to full-auto over time. My understanding is parts breakage, especiall extractors and bolts, was fairly common).
2. Ballistics - The .30 Carbine round was just "so so" as an "intermediate" round. It fired a 110 gr projectile at about 1,900 FPS. The MP 44 fired a 125 gr round at about 2,100 FPS. That means the the MP 44 round was both heavier and faster.
The other issue is the bullet design. The .30 Carbine round uses a relatively short, round nose bullet, which is not as effective as the pointed bullets of the 7.92 Kurz and later AK rounds.
Like I'm said, I'm a fan of the M-1 Carbine, so I'm not even saying I agree with this argument completely. I can just see the reasons why it wasn't as highly regarded as the MP 44 or the later AK 47.