The Enhanced Series begins with our all new state-of-the-art forged upper receiver. The M4E1 (5.56) and M5E1 (.308) upper receivers are a one-piece design combining the rail’s mounting surface with the upper itself. This provides near monolithic strength with ease of installation and modularity.
The COP Upper Receiver (Continuous Optics Platform) features a custom configured integrated upper receiver and hand guard system. This extremely rigid design allows for symmetrical or asymmetrical rail platforms to accommodate a multitude of mission requirements.