Transform your AR15/M16/M4 type rifles into a versatile belt-fed system with the FightLite MCR® Dual-Feed™ Upper Receiver. This groundbreaking MIL-Spec upper assembly allows you to interchange standard AR upper receivers without any permanent modifications, providing unprecedented flexibility and firepower. The FightLite MCR® features a 16.25-inch quick-change barrel that can be swapped in seconds, a robust short-stroke gas piston operation, and dual-feed capabilities that accept both standard AR15/M16 magazines and M27-linked ammunition.

Designed for extreme conditions, the upper receiver is coated with a manganese phosphate and Type III hardcoat anodized finish for maximum corrosion and wear resistance, while critical high-friction surfaces are treated with a dry film lubricant for enhanced performance. Ideal for law enforcement, security professionals, and responsible citizens, the FightLite MCR® offers the reliability of gas-piston operation with the flexibility of magazine or belt feed options.