FTLT MCR MIL-SPEC Dual Feed Upper | 12.5in | 5.56 NATO

Product Overview

The FightLite MCR MIL-SPEC Dual Feed Upper is a drop-on upper receiver assembly designed to interchange with standard AR/M4-type MIL-Spec lowers without permanent modification. It provides selectable dual-feed capability that accepts AR15/M16 box magazines or M27 linked ammunition and uses a short-stroke gas-piston system for reliability in adverse conditions. The assembly ships with a 12.5-inch quick-change barrel system and an M-LOK co-planar handguard; dry-film lubrication is applied to critical high-friction surfaces to enhance performance.

Applications: suitable for range and training use, and for professional/occupational roles where sustained-feed or modular capability is required.

Product Specifications

• The manufacturer is listed as FTLT (FightLite Industries).
• The model is the Mission Configurable Rifle (MCR) MIL-SPEC Dual Feed.
• The caliber is specified as .223 Rem / 5.56 NATO.
• The barrel length is 12.5 inches with a quick-change system rated for a three-second removal.
• The twist rate is 1:7 RHT.
• The barrel thread is 1/2-28 TPI.
• The operating system is a short-stroke gas piston.
• The feed system is dual-feed: accepts AR15/M16 magazines and M27 linked ammunition.
• The upper receiver and feed cover are listed as precision machined 7075-T6 billet material.
• The feed tray is listed as precision machined billet steel.
• The finish is manganese phosphate with Type III Class 2 hardcoat anodize in black.
• The handguard style is a M-LOK co-planar handguard with rail-interface system.
• The bolt carrier is specified as a full-auto bolt carrier.
• The product ships with a package of accessories described as Belt-feed main action spring, MIL-Spec H3 buffer, carbine stock spacer, extended bolt catch, magazine adapter, RIP brake muzzle compensator, and (100) M27 links.
• The UPC is 850017078031.

Built for users who value modularity and sustained-feed options, the MCR MIL-SPEC Dual Feed Upper expands an AR platform’s capability with a quick-change barrel, durable finish, and selectable feeding modes. Its configuration supports extended-range sessions, high-volume training, or professional duties where flexibility and serviceability are priorities.