The Proof Bbl Bolt 22arc 20 Cf Sendero Origin from Proof Research blends cutting edge carbon fiber construction with proven performance, delivering a lightweight 20" Sendero contour barrel in 22 ARC with a precise 1-7 twist and 1/2-28 muzzle thread for reliable compatibility with a wide range of suppressors and muzzle devices. Built to the high standards of the Origin line, this carbon fiber finish not only reduces weight to around 2lbs-11oz but also enhances rigidity and heat management for sustained accuracy during field expeditions or long-range sessions. The 20" length and Sendero profile optimize balance and barrel harmonics, while the Origin action interface ensures a solid fit with compatible chassis systems such as Bighorn or Origin configurations, delivering consistent point-of-impact retention shot after shot. This rifle barrel embodies Proof Researchs reputation for precision rifle components, offering exceptional durability, corrosion resistance, and repeatable performance in demanding environments. Whether youre assembling a lightweight long-range rig for varmint control, pronghorn expeditions, or precision bench work, the 22 ARC caliber paired with the proven Origin design provides predictable velocity, clean bore life, and reliable accuracy for dedicated shooters seeking a high-performance, carbon fiber barrel solution.