GC_UPC FightLite FightLite MCR DUAL-FEED AR-15 Upper Assembly - Black | 5.56 NATO | 16.25” Quick-Change Barrel | Accepts AR-15 Magazines & M27 Linked Ammo | M-LOK Rail-Interface System | RipBrake Muzzle Compensator $6,781.49 MCR-556-DFRM show more like this Additional, Calculated in cart BFG Outfitters GC_UPC Fightlite Mcr Dual-Feed Ar-15 Upper Assembly - Black 5.56 Nato 16.25” Quick-Change Barrel Accepts Ar-15 Magazines & M27 Linked Ammo M-Lok Rail-Interface System Ripbrake Muzzle Compensator MCR-556-DFRM $6,976.73 MCR-556-DFRM show more like this Firearms $18.45, Free over $500 Shooting Surplus GC_UPC FightLite FightLite MCR DUAL-FEED AR-15 Upper Assembly - Black | 5.56 NATO | 16.25” Quick-Change Barrel | Accepts AR-15 Magazines & M27 Linked Ammo | M-LOK Rail-Interface System | RipBrake Muzzle Compensator $7,199.99 MCR-556-DFRM show more like this Sergeant's Arms