FightLite MCR Dual-Feed 12.50" Upper 5.56x45mm 1:7 Mil-Std 1913 Picatinny Rail, Black

The groundbreaking MCR (Mission Configurable Rifle) belt-fed upper receiver assembly redefines adaptability, seamlessly integrating with standard AR/M4-type uppers while fitting any MIL-Spec lower receiver without requiring permanent modifications. Designed for maximum compatibility, this innovative system is rearward compatible with AR-15/M16 models dating back to 1963, ensuring a seamless upgrade path for a wide range of platforms. The MIL-Spec MCR 5.56x45mm DFR elevates this cutting-edge technology to an entirely new level, incorporating all accessory items from the standard MCR government product while enhancing performance with Dry Film Lubrication on critical high-friction surfaces. This advanced coating ensures exceptional durability and reliability in extreme environments. Once installed, the patented MCR upper receiver system enables users to reconfigure their firearm in seconds without tools, providing unmatched versatility for any mission profile. Engineered for responsible armed citizens, law enforcement, and professional security personnel, this system delivers an immediate upgrade in performance and capability. Key features include a gas-piston operation for superior reliability in harsh conditions, a rapid 12.5 inches quick-change barrel system that swaps in just three seconds, and a MIL-STD 1913 co-planar handguard equipped with a rail-interface system for effortless integration of optics and modern accessories. Designed to meet the demands of both precision and sustained fire, the MCR seamlessly transitions between an optic-ready carbine and a lightweight support rifle. Operators can choose between standard AR-15/M16 box magazines or M27 linked ammunition, allowing for an unprecedented level of firepower and operational flexibility in any tactical scenario. Drop-on (Mil-Spec) upper receiver assembly upgrades your AR-15/M16/M4 lower receivers or rifles, enhancing performance and compatibility with Mil-Spec standards The 5.56 x 45mm round offers versatility and reliability in a variety of firearms This 12-1/2 inches barrel is designed for quick-change functionality Features a 1:7 inches RHT, 1/2-28 TPI Short-stroke gas piston operation, providing enhanced reliability and reduced fouling compared to traditional direct impingement systems, ensuring smooth operation Dual feed accepts all AR-15/M16 magazines and M27 linked ammunition, offering exceptional versatility for rapid and efficient reloading Precision-machined 7075-T6 billet upper receiver, feed cover and charging handle, providing maximum durability and performance for your firearm Precision-machined billet steel feed tray, ensuring high-strength and reliability for the feeding system The finish includes manganese phosphate and type III, class 2 hard coat anodize black for maximum corrosion and wear resistance, ensuring longevity and resilience in harsh environments A dry film lubricant is applied to critical high-friction surfaces, reducing wear and improving the longevity and performance of your firearm The full-auto bolt carrier ensures reliable and smooth cycling, providing a consistent shooting experience for those using automatic firing modes The handguard style follows the MIL-STD-1913 rail design, offering a robust mounting platform for optics, lights and other accessories for enhanced firearm versatility Adjustable sight set allows for fine-tuning sighting system for increased accuracy Quick-change barrel handle, enabling fast and efficient barrel swaps with minimal effort Ships with belt-feed main action spring, Mil-Spec H3 buffer, carbine stock spacer, extended bolt catch, mag adapter, RIP brake muzzle compensator, (100) M27 links and operator's manual, providing all necessary components for full setup and operation Made in the USA, this product is built with quality standards, reflecting excellence in American manufacturing