I just received my USGI M1 Carbine mags from Numrich, and they look great. I peeled off the cosmoline-soaked wrapper and checked for manufacturer codes. One of them has the Underwood "U," and the other one has what looks like a "KSG." I know that "SG" is the Saginaw code, but what is the "K"?? I have no doubt that they are both USGI, but I'm curious as to what the "KSG" code means.
BTW. I'm in Missouri right now, and plan to sell these mags when I move back to Kali.
BTW. I'm in Missouri right now, and plan to sell these mags when I move back to Kali.

Comment