FightLite MCR Dual-Feed Upper, 5.56 NATO, 12.5″

Description

The FightLite MCR (Mission Configurable Rifle) MIL-SPEC dual-feed upper is a drop-in upper assembly engineered to fit standard AR/M4 type MIL-Spec lower receivers without permanent modification. Chambered for .223 Rem/5.56 NATO and built around a 12.5″ quick-change barrel system, the MCR upper offers tool-free configuration and a short-stroke gas piston for enhanced reliability. Designed with a MIL-STD 1913 co-planar rail-interface handguard and dry film lubrication on critical surfaces, it is intended for users seeking modularity and durable operation in demanding environments.

Key Specifications

• The caliber is .223 Rem/5.56 NATO.
• The barrel measures 12.50″ and is a quick-change design.
• The rifling twist is 1:7 RHT.
• The feed system is Dual-Feed — accepts AR-15/M16 magazines & M27 linked ammunition.
• The handguard style is MIL-STD 1913 rail for optics and accessories.
• The upper receiver is 7075-T6 billet aluminum (precision machined).
• Operation uses a short-stroke gas piston system for increased reliability.
• The finish is manganese phosphate & Type III Class 2 hardcoat anodize (black).
• The muzzle threading is 1/2-28 TPI.
• The assembly ships with belt-feed main action spring and accessories including an extended bolt catch and mag adapter as listed by the manufacturer.

With modular feed options, a rapid-change barrel, and robust materials, the MCR Dual-Feed upper bridges the gap between a compact carbine and a lightweight support rifle. Its combination of durable finishes, piston operation, and MIL-Spec interface makes it a practical upgrade for users who value flexibility and reliability in a single, serviceable upper assembly.