bolt carrier marked "F"

my bolt carrier is stamped "F". does anyone know what make or what that means?

FNMI - the US operating division of Fabrique National Herstal, Belgium

thanks for your info. do they also mark their barrels? the only marking on the barrel is 1:9. or do you know what companies that might do that. the reason i ask because i dont know the make of my upper.

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Originally Posted by 86k10

thanks for your info. do they also mark their barrels? the only marking on the barrel is 1:9. or do you know what companies that might do that. the reason i ask because i dont know the make of my upper.

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I believe the correct milspec marking for a 20" A2 style FN barrel is "FNMI MP CB 1:7" To my knowledge FNMI doesn't make non-milspec ANYTHING, and all true FN barrels should have the proper FN markings for M16's and M4's

BTW, if your carrier is a semi-auto spec, then it's also probably not really FN - there might well be other makers out there that use the "F" stamp, and they're not precluded from doing so since they're not part of any military supply chain.