As you know, the M1 Carbine was never supposed to be a replacement for the M1 rifle. Rather, the purpose of the M1 Carbine was to give people who normally don’t carry a full-size rifle (radiomen, mortar crews, messengers, truck drivers, etc.) something more efficient than a pistol. Basically, the idea wasn’t to replace the M1 Rifle, the goal was to replace the 1911 pistol for people who would, normally, only be carrying a pistol.
The 1911, like any pistol really, is challenging to shoot well under stress. A carbine is way easier to handle and get hits with under stress. Gun Jesus ran an impromptu course using both a 1911 and an M1 Carbine and the results are interesting.
As Chuck Connors pointed out in virtually every episode of his show, a short carbine with a pistol cartridge at pistol ranges will outperform a pistol pretty often. This seems to answer the age-old question of ‘what good is a pistol caliber carbine’. Or..does it?
An M1 Garand is about ten pounds. The M1 carbine was about half that. Obviously, theres a tremendous weight advantage. But….a 9mm carbine like a 9mm AR is virtually the same weight as…a .223 AR. So you get virtually no advantage.
You could say, though, that a 9mm AR pistol would be more compact and lighter than a .223 AR carbine and you’d be right. But then you could also just carry a .223 AR pistol and be right back to zero.
So, comparing apples to apples…..AR platform to AR platform..is a zero-sum game it seems. But as mentioned, the M1 Carbine wasnt meant to replace the M1 Garand, it was meant to replace the pistol. So…what about when you compare the 9mm carbine against the pistol? Thats where things would change. But…since you can get your 9mm AR carbine in .223, why not just use your .223 carbine?
It’s an interesting mental exercise. Almost anything you can do with a 9mm carbine you can do with a .223 carbine, so why take the ballistic penalty of being in 9mm? I gotta say, it’s hard to imagine a scenario where a 9mm carbine is a better choice than an M4. Easy to suppress and marginally lower recoil but after that…………..?
Having said that, though…I still like my 9mm carbines. I especially like my Ruger PC Charger which is probably the only format (an arm-braced ‘pistol’) that gives an advantage over the M4..namely, compactness.
Anyway, an interesting video although I’m not sure the implications it suggests are as relevant in a world of M4 carbines that ape the M1 Carbine in terms of length and weight.