GC_UPC Faxon AR-15 Bantam Upper Receiver Assembly 9mm Luger 16 Barrel - 487215" $506.00 FX916-U show more like this 15.00 MidwayUSA GC_UPC Faxon Firearms Ar-15 Complete Upper Receivers 9mm - 16" Complete Upper Receiver Group 9mm $506.60 FX916-U show more like this additional Brownells