6mm ARC 1-7.5 Twist 20" Carbon Fiber Barrel
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Proof Research
Overview
The PROOF RESEARCH 6mm ARC 20" Carbon Fiber Barrel is designed for precision shooting with its optimal length for balance and accuracy. The 1-7.5 twist rate enhances stability and bullet performance, making it suitable for a variety of 6mm ARC ammunition types. This barrel is commonly found in builds aimed at long-range accuracy and competitive shooting applications.
Specifications
Build history on GunPartPicker
Builders on GunPartPicker first added the Proof Research 6mm ARC 1-7.5 Twist 20" Carbon Fiber Barrel to a build in June 2026.
It was in stock most days in August 2026, and today all 5 retailers we track have it in stock. The best price drifted down from $999 to $889.49 over August 2026 without a real sale. Buying today, the lowest price is $889.49 at Ammunition Depot, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
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