Fightlite167514899
Ftlt Mcr Mil-Spec Dual Feed Upper 1913 12.5$6,499.99
Availability: In Stock
Current Stock: Out of stock
The Fightlite MCR Dual Feed Upper is a drop-on upper receiver assembly that transforms your standard AR15, M16, or M4 lower into a versatile, mission-ready platform. Built on short-stroke gas piston operation, this 12.5-inch upper handles everything from suppressed work to dynamic carbine courses without the fouling issues that plague direct-impingement designs in adverse conditions. The dual-feed system accepts both standard AR15/M16 magazines and M27 linked ammunition, giving you genuine operational flexibility without swapping uppers or lower receivers.
What sets the MCR apart is speed and modularity. The quick-change barrel system swaps in roughly 3 seconds with no tools—handy if you need to adapt caliber or barrel length on the fly. The billet upper receiver, feed cover, and charging handle are precision-machined from 7075-T6 aluminum, while the feed tray is billet steel. Everything ships hard-coat anodized and manganese phosphate finished in black, built to take a beating. The MIL-STD 1913 handguard integrates a modern rail interface system, so mounting optics, lights, and modern accessories is straightforward. You get an adjustable sight set and quick-change barrel handle in the box, plus 100 M27 links, main action spring, bolt catch, carbine stock spacer, and a detailed operator's manual.
The MCR upper works with any MIL-Spec AR lower without permanent modification, and Fightlite engineered it to run on lowers dating back to original AR15/M16 receivers from the 1960s. The full-auto bolt carrier and gas piston design mean reliability in dust, mud, cold, and suppressed fire—conditions where piston uppers prove their worth. Made in the USA, this is a legit upgrade for hunters, competitive shooters, and anyone serious about a dependable, configurable rifle platform.
| Brand | Fightlite |
| Product Type | Drop-On Upper Receiver Assembly |
| Caliber | 5.56 x 45mm NATO |
| Barrel Length | 12.5 inches |
| Barrel Twist | 1:7 RHT |
| Barrel Threading | ½-28 TPI |
| Gas System | Short-Stroke Gas Piston |
| Feed System | Dual Feed (AR15/M16 magazines or M27 linked ammunition) |
| Upper Receiver Material | 7075-T6 Billet Aluminum |
| Feed Tray Material | Billet Steel |
| Handguard Style | MIL-STD 1913 Rail |
| Bolt Carrier | Full-Auto |
| Finish | Manganese Phosphate & Type III Class 2 Hardcoat Anodize, Black |
| Barrel Change Speed | Approximately 3 seconds, no tools required |
| Compatibility | MIL-Spec AR15/M16/M4 lower receivers; rearward compatible to 1963 and later AR receivers |
| Country of Origin | Made in USA |
The MCR upper is designed as a drop-on assembly for any MIL-Spec AR15, M16, or M4 lower receiver. It requires no permanent modification to the host lower and is compatible with AR receivers produced as early as 1963.
Yes. The dual-feed system accepts standard AR15/M16 box magazines, but it also accepts M27 linked ammunition, giving you the flexibility to run either type without swapping uppers.
The quick-change barrel system is designed to swap in approximately 3 seconds without tools, using the included quick-change barrel handle.
The MCR upper ships with the upper receiver assembly, adjustable sight set, quick-change barrel handle, main action spring, bolt catch, carbine stock spacer, 100 M27 links, and an operator's manual.
SKU: 167515448 • Weight: 17oz
Availability: In Stock
Current Stock: Out of stock
The Fightlite MCR Dual Feed Upper is a drop-on upper receiver assembly that transforms your standard AR15, M16, or M4 lower into a versatile, mission-ready platform. Built on short-stroke gas piston operation, this 12.5-inch upper handles everything from suppressed work to dynamic carbine courses without the fouling issues that plague direct-impingement designs in adverse conditions. The dual-feed system accepts both standard AR15/M16 magazines and M27 linked ammunition, giving you genuine operational flexibility without swapping uppers or lower receivers.
What sets the MCR apart is speed and modularity. The quick-change barrel system swaps in roughly 3 seconds with no tools—handy if you need to adapt caliber or barrel length on the fly. The billet upper receiver, feed cover, and charging handle are precision-machined from 7075-T6 aluminum, while the feed tray is billet steel. Everything ships hard-coat anodized and manganese phosphate finished in black, built to take a beating. The MIL-STD 1913 handguard integrates a modern rail interface system, so mounting optics, lights, and modern accessories is straightforward. You get an adjustable sight set and quick-change barrel handle in the box, plus 100 M27 links, main action spring, bolt catch, carbine stock spacer, and a detailed operator's manual.
The MCR upper works with any MIL-Spec AR lower without permanent modification, and Fightlite engineered it to run on lowers dating back to original AR15/M16 receivers from the 1960s. The full-auto bolt carrier and gas piston design mean reliability in dust, mud, cold, and suppressed fire—conditions where piston uppers prove their worth. Made in the USA, this is a legit upgrade for hunters, competitive shooters, and anyone serious about a dependable, configurable rifle platform.
| Brand | Fightlite |
| Product Type | Drop-On Upper Receiver Assembly |
| Caliber | 5.56 x 45mm NATO |
| Barrel Length | 12.5 inches |
| Barrel Twist | 1:7 RHT |
| Barrel Threading | ½-28 TPI |
| Gas System | Short-Stroke Gas Piston |
| Feed System | Dual Feed (AR15/M16 magazines or M27 linked ammunition) |
| Upper Receiver Material | 7075-T6 Billet Aluminum |
| Feed Tray Material | Billet Steel |
| Handguard Style | MIL-STD 1913 Rail |
| Bolt Carrier | Full-Auto |
| Finish | Manganese Phosphate & Type III Class 2 Hardcoat Anodize, Black |
| Barrel Change Speed | Approximately 3 seconds, no tools required |
| Compatibility | MIL-Spec AR15/M16/M4 lower receivers; rearward compatible to 1963 and later AR receivers |
| Country of Origin | Made in USA |
The MCR upper is designed as a drop-on assembly for any MIL-Spec AR15, M16, or M4 lower receiver. It requires no permanent modification to the host lower and is compatible with AR receivers produced as early as 1963.
Yes. The dual-feed system accepts standard AR15/M16 box magazines, but it also accepts M27 linked ammunition, giving you the flexibility to run either type without swapping uppers.
The quick-change barrel system is designed to swap in approximately 3 seconds without tools, using the included quick-change barrel handle.
The MCR upper ships with the upper receiver assembly, adjustable sight set, quick-change barrel handle, main action spring, bolt catch, carbine stock spacer, 100 M27 links, and an operator's manual.
SKU: 167515448 • Weight: 17oz