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CMMG
Overview
The CMMG Buffer Assembly for AR Carbine is a complete parts kit designed to facilitate the smooth operation of your AR-15 platform. With a Mil-Spec buffer tube and a carbine buffer tube type, this assembly ensures compatibility with a wide range of stocks and enhances the overall cycling performance of your firearm. This buffer assembly is commonly found in builds focused on tactical versatility and reliable performance.
CMMG Buffer Assembly For AR Carbine, Black - 38CA929 ranked #48 of the 88 buffers builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since April 2026. All time, it ranks #45 of the 171 buffers builders have added.
Today 2 of the 4 retailers we track have it in stock. Buying today, the lowest price is $105.99 at Optics Planet.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
We ranked every buffer by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Buffer Guide →Check it against the live catalog:
The part most often added in each category by the 4 builds that include this one

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