The FightLite MCR Dual-Feed AR-15 upper assembly (brand part no. MCR-060) is a drop-on upper that upgrades any mil-spec AR-15/M16/M4 lower to MCR performance, built around a 16.25-inch quick-change barrel system that swaps in about three seconds without tools. Gas-piston operation delivers extreme reliability in adverse conditions, and the Dual-Feed system accepts standard box-type AR-15/M16 magazines or M27 linked ammunition at the operator’s discretion, giving the platform real flexibility between a standard magazine-fed carbine and a belt-fed support weapon. The upper receiver, feed cover, and charging handle are precision machined from 7075-T6 billet aluminum with a manganese phosphate and Type III Class 2 hardcoat anodize finish, and it ships complete with the main action spring, bolt catch, carbine stock spacer, 100 M27 links, and an operator’s manual.

Key Specifications

• Chambered in 5.56x45mm NATO.
• Barrel measures 16.25 inches and swaps in about three seconds without tools.
• Runs on gas-piston operation for reliability in adverse conditions.
• Accepts standard AR-15/M16 magazines or M27 linked ammunition.
• Rifled at a 1:7 twist rate with 1/2-28 TPI muzzle threading.
• Upper receiver, feed cover, and charging handle machined from 7075-T6 billet aluminum.
• Finished in manganese phosphate and Type III Class 2 hardcoat anodize, black.
• Uses a MIL-STD 1913 rail-interface handguard with an adjustable sight set.
• Ships complete with the main action spring, bolt catch, carbine stock spacer, 100 M27 links, and operator’s manual.

Frequently Asked Questions

Can this upper feed from a standard AR-15 magazine? Yes, the Dual-Feed system accepts standard AR-15/M16 magazines or M27 linked ammunition.

How fast can I change the barrel? The quick-change system swaps barrels in about three seconds without tools.

What does this upper ship with? The main action spring, bolt catch, carbine stock spacer, 100 M27 links, and an operator’s manual.

Buy the FightLite MCR Dual-Feed AR-15 Upper Assembly

Upgrade your AR-15/M16/M4 lower to true dual-feed capability. Order it from our FightLite Industries lineup, part of our AR15 uppers selection, and get it shipped fast from our Lubbock, Texas gun shop.