GC_UPC FightLite FightLite MCR DUAL-FEED AR-15 Upper Assembly - Black | 5.56 NATO | 12.5” Quick-Change Barrel | Accepts AR-15 Magazines & M27 Linked Ammo | 1913 Picatinny Rail-Interface System $6,781.49 MCR-556-DFRS show more like this Additional, Calculated in cart BFG Outfitters GC_UPC FightLite FightLite MCR DUAL-FEED AR-15 Upper Assembly - Black | 5.56 NATO | 12.5” Quick-Change Barrel | Accepts AR-15 Magazines & M27 Linked Ammo | 1913 Picatinny Rail-Interface System $7,199.99 MCR-556-DFRS show more like this Sergeant's Arms