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Proof Research AR-15 Carbon Fiber wrapped Barrel


PROOF Research carbon fiber-wrapped barrels are up to 30% lighter and 300% stiffer than stainless steel AR barrels of equivalent dimensions. PROOF’s mastery of combining advanced composite materials with their unique manufacturing process has opened up new possibilities in the world of high performance AR barrels. Their carbon fiber-wrapped barrels provide a high-end alternative to traditional AR barrels while still possessing match-grade accuracy and improved heat dissipation while at the same time exhibiting no point-of-impact shift during high-volume of fire. 


  • Length: 16" & 18"
  • Chamber: 223 Wylde
  • Muzzle: Threaded 1/2 x 28
  • Gas System Length:  16" (Mid Length) 18" (Rifle Length)
  • Gas Journal Diameter: .750"
  • Twist Rate: 1:8 


To learn more about PROOF Research and the technology involved in their barrels, click here



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