ARCTURUS C.A.T. V2 FE CENTAUR Split Gearbox Complete Lower

ARCTURUS MUR M4 High Strength Polymer Complete Upper Receiver, genuine OEM replacement part for the ARCTURUS MUR M4 AEG platform. This is the original upper receiver assembly designed and manufactured to exact specifications for your MUR M4 system. Built from high-strength polymer, it delivers the same durability and precision fit as your factory component while maintaining full compatibility with all MUR M4 internals and accessories. Perfect for repairs, upgrades, or building a second platform. Direct fit with no modifications required.