
In Stock
Type
parts
Last Seen
May 19, 2026
Proof Research AR-15 Barrel 300 AAC Blackout 12.5" Medium Contour 1:7" Twist
Sold byMidwayUSA•Posted Apr 27, 2026
Compare prices for Proof Research AR-15 Barrel 300 AAC Blackout 12.5" Medium Contour 1:7" Twist$999.00
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Deal Summary
- Currently in stock.
- Category: parts
Price History
Deal Details
Because Proof's rifle barrels are engineered for thermal performance, they also move heat very effectively through the wall (thickness) of the barrel, greatly increasing heat transport and resulting in barrels that cool faster and maintain accuracy over longer sessions of fire. FeaturesCarbon Fiber is Up to 64% lighter than traditional steel barrels of similar contourMatch-grade accuracyImproved heat dissipation for cooler and longer lasting barrelsNo point-of-impact shift during high-volume fir
UPC Price Comparison
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