On NPM Carbines would anyone know if they mainly used a N with a Number on there Bolts or they had Contracted out most of them to UN. I've searched past NPMs and seen both. I just don't know if NPM used theres more or of the other. I have seen bolts with N with 1 through 15. I don't know why since they made just over 400 thousand. Could anyone Please offer some information. Thanks
Frank
SF
