The MCR (Mission Configurable Rifle) belt-fed upper receiver assembly is engineered for compatibility with standard AR/M4 type uppers and seamlessly integrates with any mil-spec lower receiver without necessitating permanent modifications to the host lower. It maintains backward compatibility with AR-15/M16 models manufactured since 1963. Upon installation, the patented MCR upper receiver system allows for user configuration within seconds, without the need for tools, to accommodate a wide range of mission profiles. This system is specifically tailored for responsible armed citizens, law enforcement and professional security personnel seeking to enhance their rifles or carbines with MCR performance and capabilities. Key features include gas piston operation, ensuring extreme reliability under adverse conditions, a 16-1/4 inches quick-change barrel system that can be swapped in three seconds and a Mil-STD 1913 co-planar handguard equipped with a rail interface system for mounting optics and modern accessories. The MCR spans the capability spectrum from an optic-ready carbine to a lightweight support rifle, accepting standard box-type AR-15/M16 magazines or M27 linked ammunition at the operator's discretion, thereby offering unparalleled firepower and weapon flexibility.
Drop-On upper receiver assembly designed to enhance AR-15, M16 or M4 lower receivers or rifles
5.56x45mm caliber
16-1/4 inches quick-change barrel
1:7 right hand twist, 1/2-28 threads per inch (TPI)
Operation of the short-stroke gas piston system
Dual-Feed system – compatible with all AR-15/M16 magazines and M27 linked ammunition
Precision-machined 7075-T6 billet upper receiver feed cover and charging handle
Precision-engineered billet steel feed tray
Manganese phosphate coating and type III, class 2 hardcoat anodization – black
Fully automatic bolt carrier assembly
Handguard configuration – Mil-STD-1913 rail
Adjustable sight assembly
Rapid-exchange barrel handle
Includes main action spring, bolt catch, carbine stock Spacer, 100 M27 links and operator's manual
Manufactured in the United States of America
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