FTLT MCR Dual Feed Upper | 5.56 NATO | 12.5″

The FightLite (FTLT) MCR (Mission Configurable Rifle) Dual Feed upper is a drop-on upper receiver assembly designed to interchange with standard AR/M4 type uppers and fit any MIL‑Spec lower without permanent modification. It supports belt-fed operation while remaining rearward compatible with AR15/M16 models produced as early as 1963, and features a 12.5″ quick-change barrel and short-stroke gas-piston system for reliability in adverse conditions. The upper accepts both standard AR15/M16 box magazines and M27 linked ammunition, providing configuration flexibility for a range of operational needs.

Common applications include law enforcement and patrol duty upgrades, and range/tactical training where rapid configuration and high ammunition throughput are needed. The design is aimed at users who require a versatile, serviceable upper that adapts between carbine and lightweight support roles.

Product Specifications

• This item is a **Drop-On Upper Receiver Assembly** that upgrades AR15/M16/M4 type lower receivers.
• The caliber is **.223 REM/5.56 NATO**.
• The barrel length is **12.5 inches** and uses a quick-change system.
• The rifling twist is **1:7 RHT**.
• The muzzle thread specification is **1/2-28 TPI**.
• The operating system is a **Short-Stroke Gas Piston** for increased reliability.
• The feed system is **Dual Feed**, accepting standard AR15/M16 magazines and M27 linked ammunition.
• Upper components are **precision machined 7075-T6 billet** for key receiver parts.
• The feed tray is **precision machined billet steel** for robust feed geometry.
• The external finish is **Manganese Phosphate & Type III Class 2 Hardcoat Anodize – Black**.
• The handguard style is a **MIL-STD 1913 co-planar rail** for mounting optics and accessories.
• The barrel system is a **12.5″ quick-change (3 seconds)** configuration for field adaptability.
• Included items: **100 M27 links**, **main action spring**, **bolt catch**, **carbine stock spacer**, and **operator’s manual**.
• The bolt carrier is specified as **Full-Auto** in the manufacturer’s description.
• The model name is **Mission Configurable Rifle (MCR)** and the product type is **Upper**.
• UPC: **854118002681**.

The MCR Dual Feed upper is built for users who prioritize modularity and serviceability. Its quick-change barrel, robust materials, and co‑planar rail make it suitable for mounting optics and mission-specific accessories, while the dual-feed capability simplifies transitions between magazine-fed and linked ammunition use. For shooters who need an adaptable upper that installs on MIL‑Spec lowers without permanent modification, the MCR offers a practical combination of features and field-oriented engineering.