CENTURION ARMS
CM4 AR-15 Forged Upper Receiver
A mil-spec forged upper receiver machined from 7075-T4 aluminum, for use with standard M4 barrel extensions.
Standard or Thermal Fit
The CM4 is offered in two variants.
Standard mil-spec takes a barrel with a normal clearance fit.
Thermal fit uses a tighter barrel seat and requires the application of heat to install a barrel. The result is a tighter barrel to receiver interface.
Finish
Type III Class 2 hard coat anodized, with a MIL-STD-1913 rail across the top.
Completing the Receiver
This is a stripped receiver, so it needs a forward assist, ejection port cover, and charging handle.
We stock all three from Forward Controls Design: the LSFA low shelf forward assist built to clear an ambi charging handle latch, the EPC ejection port cover, and the ACF ambidextrous charging handle.
What's Included
1x Centurion Arms CM4 AR-15 Forged Upper Receiver in your selected variant
Specifications
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