Fightlite167512768
Ftlt Mcr Mil-Spec Dual Feed Upper Mlok 12.5$6,599.99
Availability: In Stock
Current Stock: Out of stock
The Fightlite MCR Dual Feed Upper with M-Lok is a drop-in upper receiver assembly designed to upgrade your existing AR15, M16, or M4 lower receiver. Built for shooters who want the flexibility to run either standard AR magazines or M27 linked belt ammunition without tool changes, this 12.5-inch quick-change upper transforms your rifle into a genuinely multi-mission platform. Whether you're looking to add modern ergonomics to a classic receiver or build a specialized carbine, the MCR upper handles the job in seconds—no permanent modifications to your host rifle required.
The short-stroke gas piston design delivers the reliability you need in adverse conditions, while the precision-machined 7075-T6 billet upper receiver and billet steel feed tray are built to last. The 12.5-inch barrel features a 1:7 right-hand twist, chrome-lined bore, and an M27 quick-change system that lets you swap barrels in roughly 3 seconds using the included handle. You get a full-auto bolt carrier regardless of your lower's design, so function is consistent whether your host rifle is a commercial build or a converted 1963-era receiver.
The M-Lok handguard at 3, 6, and 9 o'clock positions—plus a MIL-STD 1913 rail at 12 o'clock—gives you real estate for optics, lights, lasers, and modern accessories without overcomplicating your setup. Finished in manganese phosphate and Type III hardcoat anodize, this upper handles field use. The MCR arrives with an adjustable sight set, action spring, bolt catch, carbine stock spacer, 100 M27 links, and an operator's manual to get you running.
| Caliber | 5.56 x 45mm NATO |
| Barrel Length | 12.5 inches |
| Barrel Twist | 1:7 RHT |
| Barrel Threads | M-27 quick-change |
| Barrel Treatment | Chrome-lined |
| Gas System | Short-stroke piston |
| Bolt Carrier | Full-auto |
| Upper Receiver Material | 7075-T6 billet aluminum |
| Feed Tray | Precision-machined billet steel |
| Magazine Compatibility | AR15/M16 magazines or M27 linked ammunition |
| Handguard Style | M-Lok at 3, 6, 9 o'clock; MIL-STD 1913 rail at 12 o'clock |
| Finish | Manganese phosphate and Type III hardcoat anodize, black |
| Lower Receiver Compatibility | Any MIL-Spec AR15/M16/M4 lower (1963 and later) |
| Included Accessories | Adjustable sight set, main action spring, bolt catch, carbine stock spacer, 100 M27 links, quick-change barrel handle, operator's manual |
| Country of Origin | USA |
Yes. The MCR Dual Feed Upper is a standard drop-in assembly designed to interchange with any MIL-Spec AR15, M16, or M4 lower receiver without permanent modification. It's backward compatible to AR15/M16 models from 1963 onward.
Yes. The dual-feed design allows you to select between standard AR15/M16 box magazines or M27 linked ammunition at your preference—no tools required to switch between them.
The 12.5-inch quick-change barrel system uses an M27 interface and can be exchanged in approximately 3 seconds using the included quick-change barrel handle.
The upper receiver assembly ships with an adjustable sight set, main action spring, bolt catch, carbine stock spacer, 100 M27 links, a quick-change barrel handle, and an operator's manual.
SKU: 167515447 • Weight: 17oz
Availability: In Stock
Current Stock: Out of stock
The Fightlite MCR Dual Feed Upper with M-Lok is a drop-in upper receiver assembly designed to upgrade your existing AR15, M16, or M4 lower receiver. Built for shooters who want the flexibility to run either standard AR magazines or M27 linked belt ammunition without tool changes, this 12.5-inch quick-change upper transforms your rifle into a genuinely multi-mission platform. Whether you're looking to add modern ergonomics to a classic receiver or build a specialized carbine, the MCR upper handles the job in seconds—no permanent modifications to your host rifle required.
The short-stroke gas piston design delivers the reliability you need in adverse conditions, while the precision-machined 7075-T6 billet upper receiver and billet steel feed tray are built to last. The 12.5-inch barrel features a 1:7 right-hand twist, chrome-lined bore, and an M27 quick-change system that lets you swap barrels in roughly 3 seconds using the included handle. You get a full-auto bolt carrier regardless of your lower's design, so function is consistent whether your host rifle is a commercial build or a converted 1963-era receiver.
The M-Lok handguard at 3, 6, and 9 o'clock positions—plus a MIL-STD 1913 rail at 12 o'clock—gives you real estate for optics, lights, lasers, and modern accessories without overcomplicating your setup. Finished in manganese phosphate and Type III hardcoat anodize, this upper handles field use. The MCR arrives with an adjustable sight set, action spring, bolt catch, carbine stock spacer, 100 M27 links, and an operator's manual to get you running.
| Caliber | 5.56 x 45mm NATO |
| Barrel Length | 12.5 inches |
| Barrel Twist | 1:7 RHT |
| Barrel Threads | M-27 quick-change |
| Barrel Treatment | Chrome-lined |
| Gas System | Short-stroke piston |
| Bolt Carrier | Full-auto |
| Upper Receiver Material | 7075-T6 billet aluminum |
| Feed Tray | Precision-machined billet steel |
| Magazine Compatibility | AR15/M16 magazines or M27 linked ammunition |
| Handguard Style | M-Lok at 3, 6, 9 o'clock; MIL-STD 1913 rail at 12 o'clock |
| Finish | Manganese phosphate and Type III hardcoat anodize, black |
| Lower Receiver Compatibility | Any MIL-Spec AR15/M16/M4 lower (1963 and later) |
| Included Accessories | Adjustable sight set, main action spring, bolt catch, carbine stock spacer, 100 M27 links, quick-change barrel handle, operator's manual |
| Country of Origin | USA |
Yes. The MCR Dual Feed Upper is a standard drop-in assembly designed to interchange with any MIL-Spec AR15, M16, or M4 lower receiver without permanent modification. It's backward compatible to AR15/M16 models from 1963 onward.
Yes. The dual-feed design allows you to select between standard AR15/M16 box magazines or M27 linked ammunition at your preference—no tools required to switch between them.
The 12.5-inch quick-change barrel system uses an M27 interface and can be exchanged in approximately 3 seconds using the included quick-change barrel handle.
The upper receiver assembly ships with an adjustable sight set, main action spring, bolt catch, carbine stock spacer, 100 M27 links, a quick-change barrel handle, and an operator's manual.
SKU: 167515447 • Weight: 17oz