GC_UPC Fightlite MCR Dual-Feed Upper MLOK 12.5in Dry Film - MCR-556-DFRS - Picatinny MAP MCR-556-DFRS show more like this 14.95 TheGunDock.com 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 $6,239.99 MCR-556-DFRS show more like this Handguns $25 / Rifles $34.99 Charter Tactical GC_UPC Fightlite Industries Mcr Dual-Feed Upper With Dry Film - Mcr Dual-Feed Upper Picatinny 12.5in Dry Film $6,349.99 MCR-556-DFRS show more like this additional Brownells 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