Fightlite Industries MCR556DFR 5.56x45mm NATO 16.25" 1:7" Twist Complete Upper

The FightLite Industries MCR556DFR is a mission-configurable complete upper receiver assembly chambered in 5.56x45mm NATO and built around a 16.25" barrel with a 1:7" twist. Part of FightLite's MCR (Mission Configurable Rifle) platform, this upper is designed to interchange with standard AR-15/M4 type uppers and readily fits any standard AR-15 lower receiver, giving builders a versatile foundation that supports both conventional magazine-fed and belt-fed configurations.

The upper is constructed from 7075-T6 aluminum and features a full-length MIL-STD 1913 rail handguard that provides a continuous Picatinny mounting surface for optics, lights, lasers, bipods, and forward accessories. Adjustable iron sights come installed for immediate use right out of the box.

Whether you are building a dedicated belt-fed rifle from the ground up or simply want a mission-adaptable upper for your existing AR-15 lower, the MCR556DFR delivers the modularity and versatility that define FightLite's MCR system.