CMMG AR-15 Buffer Retainer
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CMMG
Overview
The CMMG AR-15 Buffer Retainer is designed for use with a rifle-weight buffer, ensuring proper functionality within the AR-15 platform. This component plays a critical role in securing the buffer in the buffer tube, allowing for smooth cycling and reliable operation of the action. You'll often find this part in builds utilizing a carbine gas system, particularly those chambered in .223 Wylde.
Specifications
Build history on GunPartPicker
Builders on GunPartPicker first added the CMMG AR-15 Buffer Retainer to a build in March 2026.
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today 5 of the 6 retailers we track have it in stock. It dipped to $1.90 at Brownells for a stretch in August 2026, well under its usual $2.35 to $7.49, so sales do come around. Buying today, the lowest price is $2.05 at KY Gun Company, above August's low of $1.90, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
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Frequently Built With
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