Overview
The FightLite MCR-556-DFR MCR Dual-Feed Upper Receiver is a professional-grade 5.56 NATO upper receiver assembly designed to upgrade compatible MIL-Spec AR-15, M16, and M4-style lower receivers. Built around FightLite’s Mission Configurable Rifle platform, this upper gives users dual-feed capability with standard AR-15/M16 magazines or M27 linked ammunition.
The MCR-556-DFR features a 16.25" quick-change barrel, 1:7 right-hand twist, 1/2x28 muzzle threads, short-stroke gas piston operation, and a MIL-STD 1913 Picatinny handguard for optics and accessories. The upper receiver, feed cover, and charging handle are precision machined from 7075-T6 billet aluminum, while the billet steel feed tray and dry-film lubricant on critical high-friction surfaces help support reliable performance in demanding conditions.
This upper ships with the belt-feed main action spring, MIL-Spec H3 buffer, carbine stock spacer, extended bolt catch, magazine adapter, RIP Brake muzzle compensator, 100 M27 links, and operator’s manual. This listing is for the upper receiver assembly only; lower receiver, firearm, ammunition, magazines, optic, and additional accessories are sold separately unless otherwise stated.
Features:
- FightLite MCR Dual-Feed upper receiver assembly
- Designed for compatible MIL-Spec AR-15/M16/M4-style lower receivers
- 5.56x45mm NATO / .223 Rem compatible
- Dual-feed system accepts AR-15/M16 magazines and M27 linked ammunition
- 16.25" quick-change barrel
- 1:7 right-hand twist
- 1/2x28 muzzle threads
- Short-stroke gas piston operation
- Precision-machined 7075-T6 billet upper receiver
- Precision-machined 7075-T6 billet feed cover and charging handle
- Precision-machined billet steel feed tray
- Full-auto bolt carrier
- MIL-STD 1913 Picatinny handguard
- Adjustable sight set
- Quick-change barrel handle
- Dry-film lubricant applied to critical high-friction surfaces
- Black manganese phosphate and Type III Class 2 hardcoat anodized finish
- Made in USA
Specifications:
- Brand: FightLite Industries
- Model: MCR Dual-Feed Upper
- SKU: MCR-556-DFR
- UPC: 859714006903
- Caliber: 5.56x45mm NATO / .223 Rem
- Barrel Length: 16.25"
- Barrel Type: Quick-Change
- Twist Rate: 1:7 RH
- Muzzle Thread: 1/2x28
- Operating System: Short-Stroke Gas Piston
- Feed System: Dual-Feed
- Magazine Compatibility: AR-15/M16 Magazines
- Linked Ammunition Compatibility: M27 Links
- Receiver Material: 7075-T6 Billet Aluminum
- Feed Tray Material: Billet Steel
- Handguard: MIL-STD 1913 Picatinny Rail
- Bolt Carrier: Full-Auto Bolt Carrier
- Finish: Black / Manganese Phosphate / Type III Class 2 Hardcoat Anodized
- Sights: Adjustable Sight Set
- Included Components: Belt-Feed Main Action Spring, MIL-Spec H3 Buffer, Carbine Stock Spacer,
- Extended Bolt Catch, Magazine Adapter, RIP Brake Muzzle Compensator, 100 M27 Links, Operator’s
- Manual
- Country of Origin: USA
- Condition: New
- Product Type: Complete Upper Receiver Assembly
