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Uppers and Lowers

From stripped AR-15 uppers and lowers to complete receiver assemblies, CMMG delivers quality components for every AR build. Whether you need a basic stripped lower receiver for full customization or a complete upper receiver group ready to install, CMMG offers reliable, mil-spec AR receivers in multiple configurations and calibers.

Uppers
Uppers product

Uppers

Looking for an AR15 upper build kit or stripped upper receiver? CMMG has you covered with all things upper receivers.

Lower Receivers
Lower Receivers product

Lower Receivers

Looking for an AR15 lower receiver or lower receiver assembly? We have you covered with all things lower receivers.