Overview
The FightLite MCR Dual-Feed Upper M-LOK is a premium 5.56 NATO upper receiver assembly designed for compatible MIL-Spec AR15/M16/M4 type lower receivers. Built with a 16.25" quick-change barrel, short-stroke gas piston operation, and FightLite’s Dual-Feed system, this upper is engineered to accept standard AR15/M16 magazines or M27 linked ammunition.
The MCR-556-DFRM features a precision-machined 7075-T6 billet upper receiver, feed cover, and charging handle, along with a billet steel feed tray for strength and durability. Its M-LOK handguard provides modern accessory mounting flexibility with a top Picatinny rail and M-LOK interface positions, while dry film lubricant on critical high-friction surfaces supports performance in demanding conditions.
This listing is for the upper receiver assembly only. Lower receiver, firearm, magazines, ammunition, optics, and accessories are sold separately unless otherwise stated. Buyer is responsible for all federal, state, and local laws.
Features:
- FightLite MCR Dual-Feed Upper M-LOK
- 5.56x45mm NATO chambering
- 16.25" quick-change barrel
- 1:7" right-hand twist
- 1/2x28 threaded muzzle
- Short-stroke gas piston operation
- Dual-Feed system accepts AR15/M16 magazines and M27 linked ammunition
- Precision-machined 7075-T6 billet upper receiver
- Precision-machined billet feed cover and charging handle
- Precision-machined billet steel feed tray
- Professional dry-film coating on critical high-friction surfaces
- Manganese phosphate and Type III Class 2 hardcoat anodized black finish
- Full-auto bolt carrier
- M-LOK handguard with top Picatinny rail
- Adjustable sight set
- Quick-change barrel handle
- Extended bolt catch included
- Magazine adapter included
- H3 buffer included
- RIP Brake muzzle compensator included
- Made in USA
- Upper receiver assembly only
Specifications:
- Brand: FightLite Industries
- Product Line: MCR / Mission Configurable Rifle
- Model: MCR Dual-Feed Upper M-LOK
- SKU: MCR-556-DFRM
- UPC: 859714006910
- Caliber: 5.56x45mm NATO
- 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: AR15/M16 Magazines
- Linked Ammunition Compatibility: M27 Linked Ammunition
- Receiver Material: 7075-T6 Billet Aluminum
- Feed Tray Material: Billet Steel
- Handguard: M-LOK with Top Picatinny Rail
- Finish: Black Hardcoat Anodized / Manganese Phosphate
- Bolt Carrier: Full-Auto Bolt Carrier
- Muzzle Device: RIP Brake Muzzle Compensator
- Condition: New
- Product Type: Complete Upper Receiver Assembly
- Included: Upper Assembly, 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
- Compliance Note: Buyer must comply with all applicable federal, state, and local laws
