CMMG Receiver Extension and Stock KIT for Carbine ...
CMMG
Overview
The CMMG Receiver Extension and Stock Kit for Carbine is a complete buffer tube assembly designed specifically for carbine-length configurations. This kit provides the necessary components for securely mounting a stock to your AR-15, ensuring optimal functionality and stability during operation. It's commonly used in builds that prioritize a lightweight and adjustable stock setup, making it ideal for both tactical and recreational shooting applications.
Specifications
Build history on GunPartPicker
Builders on GunPartPicker first added the CMMG Receiver Extension and Stock KIT for Carbine ... to a build in April 2026.
It was hard to find in August 2026, in stock on only 8 of the 17 days we checked, and today only CMMG has it in stock. It dipped to $101 at BattleHawk Armory for a stretch in August 2026, well under its usual $129.95 to $129.99, so sales do come around. Buying today, the lowest price is $129.95 at CMMG, above August's low of $101, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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