All of our barrels meet SAAMI chamber specifications and are satisfaction guaranteed.Our QPQ and PVD finishes offer outstanding protection against the elements while enhancing the barrel's appearance. QPQ improves surface hardness and wear resistance, while PVD adds a durable coating. Expect excellent corrosion resistance and long-lasting durability.Featuring a 1/2x28 threaded muzzle option, our barrels allow easy attachment of suppressors or compensators.Pistol Barrel Finish: QPQ & PVDMaterial: Hardened 416R Stainless SteelModel: 19Twist Rate: 1/10"Pistol Barrel Flutes: None, Spiral, and BomberWeight: 3.2ozThreaded barrels include standard thread protector