FightLite MCR Dual Feed Complete Upper, 5.56x45mm NATO, M-Lok Handguard


  • Barrel Length: 16-1/4″
  • Barrel Thread Pitch: 1/2″ x 28 TPI
  • Brand: FightLite Industries
  • Caliber: .223 Rem,5.56x45mm
  • Finish / Color: Black
  • Firearm Type: Rifle
  • Material: Aluminum,Steel
  • Models Fit: M-16,AR-15
  • Type: Semi-Auto
  • SKU: MCR-556-DFRM Category: Tag:


    Description: FightLite MCR Dual Feed Complete Upper, 5.56x45mm NATO, M-Lok Handguard. This drop-on, complete belt / mag fed upper receiver assembly is manufactured by Fightlite and chambered for 5.56x45mm NATO and .223 Rem ammunition. This upper features a dry film lubricant applied to crucial high-friction surfaces a Manganese Phosphate & Type III finish with a class 2 black anodized hardcoat and has an M-Lok handguard with M-Lok rails in the 3, 6 & 9 o’clock positions along with a 1913 MIL-STD rail on top. This upper has a full-auto rated bolt carrier, is optic ready and will accept a variety of ball, tracer and special purpose ammunition from standard 30 round M16 / AR-15 magazines or NATO standard M27 linked ammunition. This complete FightLite upper will fit any standard AR-15 lower receiver and has a feed tray with a steel phosphate finish. Included with this assembly is a main action spring, bolt catch, carbine stock spacer, M27 links, mag adapter, RipBrake muzzle compensator & operator’s manual. Made in USA.

    The groundbreaking MCR (Mission Configurable Rifle) belt-fed upper receiver assembly is designed to interchange with standard AR/M4 type uppers and readily fits any MIL-Spec lower receiver without permanent modification to the host lower, and is rearward compatible to AR15/M16 models produced as early as 1963. The MIL-Spec MCR 5.56 DFR takes the standard MCR technology to a whole new level and includes all of the accessory items that are included in the standard MCR government product along with Dry Film Lubrication on critical high-friction surfaces for extra performance in extreme conditions.

    Once installed, the patented MCR upper receiver system can be user-configured in seconds without tools to adapt to virtually any mission profile. Specifically designed for responsible armed citizens, law enforcement and professional security personnel who wish to upgrade their rifle or carbine to MCR performance and capability; standard features include gas-piston operation for extreme reliability in adverse conditions; a 16.25″ quick-change (3 seconds) barrel system and an M-Lok co-planar hand-guard with rail-interface system for the mounting of optics and modern accessories. Spanning the capability range from the optic ready carbine through a lightweight support rifle; the MCR accepts standard box type AR15/M16 magazines or M27 linked ammunition at operator discretion, permitting unprecedented firepower and weapon flexibility.

    CALIBER 5.56x45mm NATO / .223 Rem
    OPERATING SYSTEM Short-Stroke Gas Piston
    ACTION TYPE Semi-Auto
    BOLT CARRIER Full-Auto Rated
    BELT FED NATO M27 Linked Ammo
    MAGAZINE FED AR15 / M16 Mags
    UPPER MATERIAL Precision Machined 7075-T6 Billet
    FINISH Manganese Phosphate / Black Anodize
    BARREL 16.25″ Quick Change
    BARREL MATERIAL Chrome-Lined
    TWIST RATE 1:7
    BARREL HANDEL Quick Change
    M-LOK ACCESSORY SYSTEM 3, 6 & 9 o’clock position
    MIL-STD 1913 RAILS 12 o’clock position
    SIGHTS Adjustable Sight Set

    16.25″ Chrome-Lined Barrel
    This FightLite upper assembly features a 16-1/4″ chrome lined barrel that features quick change construction. The proprietary barrel handle makes swapping a hot barrel easy and safe. The barrel also features 1/2″x28 TPI threads and ships with a muzzle brake installed.

    Adjustable Sight Set
    The MCR upper comes with a set of adjustable sights installed. The rear sight is adjustable for windage and elevation and the front sight is low enough to not interfere with any rail sights that may be added to the upper.

    M-LOK Handguard
    This MCR features a handguard that utilizes the M-Lok accessory rail system at the 3, 6 & 9 o’clock positions. The handguard also has a MIL-STD 1913 rail on top.

    Steel Phosphate Feed Tray
    Constructed of a strong steel and boasting a durable phosphate coating, the belt-fed option of this upper runs through a feed tray that is built for rugged operation and a long service life.

    AR-15 / M-15 Mags
    This MCR upper can accept standard AR-15 or M-16 magazines chambered in the 5.56x45mm / .223 Rem caliber.

    NATO M27 Links
    The MCR upper ships with 100 quality steel M27 NATO links to assemble belted ammo. Be sure to grab more links and the Gun Lab E-Z Link assembly tool to quickly and efficiently create your belts.

    Additional Components Included

    • Belt-Feed Main Action Spring
    • MIL-Spec H3 Buffer
    • Carbine Stock Spacer
    • Extended Bolt Catch
    • Mag Adapter
    • RipBrake Muzzle Compensator
    • Operator’s Manual

    You get a free AAC Stripped Lower with the purchase of this FightLite MCR Upper Assembly.

    AAC Stripped AR-15 Lower Receiver

    • Midwest Gun Works Exclusive
    • Made from 7075-T6 Aluminum
    • Forged Aluminum
    • Black Anodized

    Manufacturer: FightLite Industries

    This is NOT an NFA item

    Note: . Please have your FFL dealer fax their FFL to or email to [email protected]. When sending the FFL to Midwest Gun Works be sure to include the customer name and order number


    • Barrel Length: 16-1/4″
    • Barrel Thread Pitch: 1/2″ x 28 TPI
    • Brand: FightLite Industries
    • Caliber: .223 Rem,5.56x45mm
    • Finish / Color: Black
    • Firearm Type: Rifle
    • Material: Aluminum,Steel
    • Models Fit: M-16,AR-15
    • Type: Semi-Auto