According to the ATF database, there are 4 registered FFLs in Knob Noster, Missouri.
801 A DEERBROOKKNOB NOSTER, MO, 65336
905 CHARLES STKNOB NOSTER, MO, 65336
27 SE 951KNOB NOSTER, MO, 65336
14 SE 971 KNOB NOSTER, MO, 65336