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CMMG
Overview
The CMMG 6061 T6 Aluminum Barrel Nut is designed for use with 9-inch barrels, providing a secure attachment point for your upper receiver. Its nitride finish enhances durability and corrosion resistance, ensuring the barrel nut maintains its integrity even under high heat and stress. This component is commonly found in compact AR-15 builds where a shorter length is desired for maneuverability.
Prices checked
Builders on GunPartPicker first added the CMMG 6061 T6 Aluminum Barrel Nut, 9" L - 55DA296 to a build in August 2026.
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today 9 of the 10 retailers we track have it in stock. Prices barely moved in September 2026, holding around $12.06, so there haven't been real sales lately. Buying today, the lowest price is $9.80 at Classic Firearms, which matches the best price we saw in September.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
We ranked every barrel by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Barrel Length & Brand Report →Check it against the live catalog:
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