300 AAC Blackout 1-7 Twist 12.5" Carbon Fiber Barrel
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specifications

Manufacturer:

Proof Research

Platform:

AR-15

Caliber:

300AAC

Barrel Length:

12.5"

    300 AAC Blackout 1-7 Twist 12.5" Carbon Fiber Barrel

    Caliber Manufacturer Color Weight Merchant Price Merchant URL
    300AAC Proof Research None None None $999.99 Brownells Add

    Prices last checked September 2026. Prices and availability change often, so confirm on the retailer's site.

    PROOF Research's match-grade carbon fiber barrels are stronger, lighter, and as accurate as the finest precision steel barrels and will maintain their performance in the harshest conditions. Up to 64% lighter than traditional steel barrels Match-grade accuracy Improved heat dissipation for cooler and longer lasting barrels No point-of-impact shift during high-volume fire Reduced harmonic barrel vibration Unprecedented durability Mfg: Proof Research

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