Proof Research 6 ARC barrels are impressively lightweight, offering up to a 64% weight reduction compared to standard steel barrels. Engineered to handle extreme temperatures. Staying cooler significantly extends their lifespan. Encased in aerospace-grade carbon fiber with a proprietary matrix resin, these barrels provide unmatched strength, durability, and resilience.
This barrel is perfect for your next AR build or to replace what you currently have!
* 6 ARC Disclaimer - We do not guarantee optimal cycling performance with factory ammunition weighing under 100 grains.
* 6 ARC barrels are designed for operation using a Grendel Type II bolt.