Proof Research | PR15 Steel AR Barrel | 6mm ARC | Stainless

Proof's PR15 steel barrel skips the carbon fiber wrap for AR‑15 builders who specifically want a traditional all‑steel barrel, machined from match‑grade steel and rifled with the same single‑point cut process Proof uses across its entire barrel line. Real match‑grade accuracy without the added cost of carbon fiber, for builds where the weight savings don't matter as much as the price point.