I've said before that the M1 Carbine is one of the most underrated self-defense firearm ever made...we had an interesting thread on the blog a couple of years ago where some really high-speed people, both military and LEO, wrote in to "testify" for the Carbine...remember, Jim Cirillo used a cut-down Carbine in his days in NYPD, and he told me he NEVER had any complaints about the gun or the cartridge. The whole story of a how a cartridge with the ballistics of the venerated 125-grain .357 police load came to be called an underpowered whimp is pretty interesting — essentially, the post-WW2 American gunwriters were in the pockets of various and sundry gun companies, and they needed something to criticize to maintain their cred. The Mi Carbine/.30 Carbine round fit the bill...it was out of production; most of the ammo available was military ball, which was over-penetrative and best of all, it was OLD in a period of time when NEW was worshiped.
A rifle-mounted light isn't a necessity, just a convenience...a flashlight in the weak hand on the forearm works almost as well, especially with these light-recoiling guns.
I think I'll get one of the new little guns from Auto-Ordnance and do a bunch of DOWN RANGE stuff with it...
Michael B