The FightLite Industries MCR (Mission Configurable Rifle) Dual-Feed Upper Receiver Assembly is a groundbreaking drop-on MIL-Spec upper that transforms any AR-15/M16/M4-compatible lower receiver into a belt-fed or magazine-fed platform without permanent modification. Chambered in 5.56x45mm NATO and featuring a 16.25" quick-change, chrome-lined barrel threaded 1/2x28, this upper receiver is precision machined from 7075-T6 billet aluminum and features a short-stroke gas piston operating system for enhanced reliability. The M-LOK handguard provides versatile accessory attachment, while the manganese phosphate and Type III, Class 2 hardcoat anodize finish deliver maximum corrosion and wear resistance. Dry Film Lubrication is applied to critical high-friction surfaces for outstanding performance in extreme conditions. Compatible with AR-15/M16 magazines and M27 linked ammunition, the MCR556DFRM ships with a comprehensive accessory package and is proudly made in the U.S.A.
Product Highlights
- Dual-Feed Versatility: Accepts all AR-15/M16 standard magazines as well as M27 belt-linked ammunition, offering unmatched operational flexibility.
- Short-Stroke Gas Piston Operation: Provides reliable, consistent cycling and reduces fouling in the receiver compared to direct impingement systems.
- Precision 7075-T6 Billet Construction: Upper receiver, feed cover, and charging handle are precision machined from aerospace-grade 7075-T6 billet aluminum for exceptional strength and durability.
- Dry Film Lubrication: Applied to critical high-friction surfaces, enhancing performance and longevity under extreme operating conditions.
- Complete Ready-to-Run Package: Ships with Belt-Feed Main Action Spring, MIL-Spec H3 Buffer, Carbine Stock Spacer, Extended Bolt Catch, Mag Adapter, RIPBrake Muzzle Compensator, 100 M27 Links, and Operator's Manual.
Specs
- Brand: FightLite Industries
- MPN: MCR556DFRM
- UPC: 859714006910
- Caliber: 5.56x45mm NATO
- Barrel Length: 16.25"
- Barrel Twist: 1:7" RHT
- Barrel Threading: 1/2x28 TPI
- Barrel Finish: Chrome Lined
- Receiver Material: 7075-T6 Billet Aluminum
- Handguard Style: M-LOK
- Operating System: Short-Stroke Gas Piston
- Bolt Carrier: Full-Auto
- Finish: Manganese Phosphate and Type III, Class 2 Hardcoat Anodize Black
- Dry Film Lubrication: Applied to critical high-friction surfaces
- Feed System: Dual-Feed (Magazine and Belt)
- Compatible Magazines: All AR-15/M16 Magazines and M27 Linked Ammunition
- Sights: Adjustable Sight Set Included
- Color: Black
- Country of Manufacture: USA
- Includes: Belt-Feed Main Action Spring, MIL-Spec H3 Buffer, Carbine Stock Spacer, Extended Bolt Catch, Mag Adapter, RIPBrake Muzzle Compensator, (100) M27 Links, Operator's Manual
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