Product Summary
The CMMG Fastback Receiver Extension is a Mil-Spec aluminum buffer tube designed for rapid stock or brace deployment. Utilizing patent-pending Fastback Technology, it allows users to pull the stock straight back to an extended position without needing to press a release button. This design eliminates locking tabs that can bind when dirty and removes the need for a release lever. It also features a Personal Position Preset (P3) system, allowing you to customize the extension length via an indexing screw. This part is ideal for shooters who want a faster, more reliable transition to a deployed stock or brace.
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