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CMMG
Overview
The CMMG AR-15 Pistol Receiver Extension is a tube-only assembly specifically designed for pistol configurations of the AR-15 platform. This buffer tube type is essential for builders looking to create a compact firearm that adheres to pistol regulations while allowing for a stable shooting platform. This receiver extension is commonly found in builds that prioritize maneuverability and ease of handling, making it a popular choice among enthusiasts of short-barreled firearms.
The CMMG AR-15 Pistol Receiver Extension was out of stock everywhere we track for all of September 2026, and today none of the 3 retailers we track has it in stock right now. Listed prices start at $39.95 at Brownells for when it comes back.
Prices checked · refreshed daily across 37 retailers
We ranked every buffer tube assembly by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Buffer Tube Assembly Guide →Check it against the live catalog:
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