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. Material: Hardened 416R Stainless Steel and includes a standard thread protector.