GC_UPC Gemtech 13833 Gvac Upper Receiver 5.56X45mm Nato 16.10", Black, 15" M-Lok Handguard, Etm Flash Hider, Bcg Included $705.88 13833 show more like this Firearms $18.45, Free over $500 Shooting Surplus GC_UPC Gemtech 13833 GVAC Upper Receiver for AR-15 5.56 16.10" $746.99 13833 show more like this $9.99 - $19.99 Deguns.net GC_UPC Gemtech 13833 GVAC Upper Receiver 5.56x45mm NATO 16.10" Black 15" M-LOK Handguard ETM Flash Hider BCG Included $753.85 13833 show more like this $10.95 flat rate GunStuff TV GC_UPC Gemtech 13833 Gvac Upper Receiver 5.56x45mm NATO 16.10", Black, 15" M-LOK Handguard, ETM Flash Hider, BCG Included $784.32 13833 show more like this Calculated in Cart Classic Firearms