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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
Available Merchants(5)
Prices checked
Price Alert
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.
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today all 5 retailers we track have it in stock. The best price crept up from $889.49 to $951.49 over September 2026. Buying today, the lowest price is $949 at Brownells, above September's low of $889.49, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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