Proof Research engineered this AR-style 300 Blackout pistol barrel accessory to weigh up to 64% less than traditional steel barrels of comparable contour. The carbon fiber construction—wrapped in aerospace-grade material and impregnated with a proprietary matrix resin—delivers improved heat dissipation, keeping the barrel cooler and extending its service life.
AR Barrels
Proof Research AR-Style 300 Blackout Pistol Barrel Accessory
$1,091.00
Proof Research’s carbon fiber-wrapped 300 Blackout pistol barrel weighs up to 64% less than traditional steel while delivering superior heat dissipation. This 12.50″ pistol length barrel features 1:8″ twist and 5/8-24 tpi threading for reliable performance.
Availability: In stock
Proof Research
| Weight | 3 lbs |
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| Dimensions | 18 × 2.5 × 2.5 in |
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