Aero Precision M5E1 Enhanced Upper Receiver Assembled LR-308 Aluminum

The Aero Precision M5E1 Enhanced Upper Receiver is a one-piece design combining the handguard mounting platform with the upper itself. Through superior engineering, Aero Precision condensed the parts needed to mount a free-floated handguard to a mere 8 screws. Since the handguard mounting surface and upper are of the same forging, not only is it a stronger system, but they were able to make additional lightening cuts to save weight and allow for more efficient cooling.