The CMMG Receiver Extension Kit for AR-15 carbines provides a collapsible receiver extension setup with the carbine buffer assembly and carbine action spring. It’s designed to replace or build out an AR-15 carbine stock system using the standard buffer-tube interface.
Key Features
Built for standard AR-15 carbine receiver-extension compatibility
Includes carbine buffer assembly and carbine action spring for correct cycling function
Black finish for a matched look with compatible AR-15 components
Collapsible AR-15 carbine receiver extension configuration for adjustable stock fit
Upgrade your AR-15 carbine’s recoil system with this CMMG receiver extension kit and get your build back to proper function and fit.
