CMMG 9mm Carbine Buffer For AR Rifles, Black - 90CA9B4
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CMMG
Overview
The CMMG 9mm Carbine Buffer is designed specifically for AR rifles that operate with a carbine buffer tube, providing the necessary weight and function for reliable cycling in 9mm builds. As a buffer-only assembly, it plays a critical role in absorbing recoil and managing bolt movement, ensuring smoother operation and improved performance. This buffer is commonly found in builds focusing on 9mm configurations, catering to those looking for a compact and efficient setup.
Specifications
August 2026 on GunPartPicker
CMMG 9mm Carbine Buffer For AR Rifles, Black - 90CA9B4 ranked #48 of the 88 buffers builders added on GunPartPicker in August 2026. Builders on GunPartPicker first added it to a build in March 2026.
It was hard to find in August 2026, in stock on only 10 of the 17 days we checked, and today 2 of the 4 retailers we track have it in stock. It dipped to $22.49 at BattleHawk Armory for a stretch in August 2026, well under its usual $30.99 to $33.46, so sales do come around. Buying today, the lowest price is $30.99 at GritR Sports, above August's low of $22.49, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
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