Bought this on Gunbroker as kind of an extra upper about 6 months ago. The guy said it was an fn upper with knights hard guards. I paid about 550 I think. I don’t see any fn marks but the handguards says KAC and I don’t know much about fn uppers. Anyway put about 50 rounds through it and 20” uppers aren’t really my thing. Doesn’t come with bcg or charging handle. Text with any questions 210-305-36four eight.
